SILFEX Trademark

Trademark Overview

On Tuesday, February 10, 2009, a trademark application was filed for SILFEX with the United States Patent and Trademark Office. The USPTO has given the SILFEX trademark a serial number of 77667696. The federal status of this trademark filing is REGISTERED AND RENEWED as of Wednesday, November 3, 2021. This trademark is owned by Lam Research Corporation. The SILFEX trademark is filed in the Chemical Products and Computer & Software Products & Electrical & Scientific Products categories with the following description:

Silicon solar cell material for electricity generation; Silicon wafers; Bonded silicon assemblies for use in semiconductor manufacturing; Optical devices incorporating silicon and silicon carbide, namely, silicon mirrors, silicon lenses, and silicon windows; Silicon mirrors; Silicon targets; Optical transmission devices, namely, silicon mirrors, silicon lenses, silicon windows

Pure non-metallic silicon sold in ingots, slices, loose aggregate chunks; Silicon; Silicon carbide
silfex

General Information

Serial Number77667696
Word MarkSILFEX
Filing DateTuesday, February 10, 2009
Status800 - REGISTERED AND RENEWED
Status DateWednesday, November 3, 2021
Registration Number3981941
Registration DateTuesday, June 21, 2011
Mark Drawing4 - Illustration: Drawing with word(s) / letter(s) / number(s) in Block form
Published for Opposition DateTuesday, January 12, 2010

Trademark Statements

Goods and ServicesSilicon solar cell material for electricity generation; Silicon wafers; Bonded silicon assemblies for use in semiconductor manufacturing; Optical devices incorporating silicon and silicon carbide, namely, silicon mirrors, silicon lenses, and silicon windows; Silicon mirrors; Silicon targets; Optical transmission devices, namely, silicon mirrors, silicon lenses, silicon windows
Pseudo MarkSILICON FEX
Goods and ServicesPure non-metallic silicon sold in ingots, slices, loose aggregate chunks; Silicon; Silicon carbide

Classification Information

International Class001 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins; unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry.
US Class Codes001, 005, 006, 010, 026, 046
Class Status Code6 - Active
Class Status DateWednesday, October 28, 2009
Primary Code001
First Use Anywhere DateMonday, February 8, 2010
First Use In Commerce DateMonday, February 8, 2010
International Class009 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire extinguishing apparatus.
US Class Codes021, 023, 026, 036, 038
Class Status Code6 - Active
Class Status DateWednesday, October 28, 2009
Primary Code009
First Use Anywhere DateMonday, February 8, 2010
First Use In Commerce DateMonday, February 8, 2010

Trademark Owner History

Party NameLam Research Corporation
Party Type30 - Original Registrant
Legal Entity Type03 - Corporation
AddressFremont, CA 94538
Party NameLam Research Corporation
Party Type20 - Owner at Publication
Legal Entity Type03 - Corporation
AddressFremont, CA 94538
Party NameLam Research Corporation
Party Type10 - Original Applicant
Legal Entity Type03 - Corporation
AddressFremont, CA 94538

Trademark Events

Event DateEvent Description
Thursday, May 7, 2009NON-FINAL ACTION WRITTEN
Friday, February 13, 2009NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Saturday, February 14, 2009NOTICE OF PSEUDO MARK MAILED
Wednesday, April 29, 2009ASSIGNED TO EXAMINER
Thursday, May 7, 2009NON-FINAL ACTION E-MAILED
Thursday, May 7, 2009NOTIFICATION OF NON-FINAL ACTION E-MAILED
Tuesday, October 27, 2009TEAS RESPONSE TO OFFICE ACTION RECEIVED
Tuesday, October 27, 2009CORRESPONDENCE RECEIVED IN LAW OFFICE
Wednesday, October 28, 2009TEAS/EMAIL CORRESPONDENCE ENTERED
Wednesday, November 18, 2009EXAMINERS AMENDMENT -WRITTEN
Wednesday, November 18, 2009EXAMINERS AMENDMENT E-MAILED
Wednesday, November 18, 2009NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED
Wednesday, November 18, 2009EXAMINER'S AMENDMENT ENTERED
Friday, November 20, 2009APPROVED FOR PUB - PRINCIPAL REGISTER
Tuesday, December 8, 2009ASSIGNED TO LIE
Tuesday, December 8, 2009LAW OFFICE PUBLICATION REVIEW COMPLETED
Tuesday, January 12, 2010PUBLISHED FOR OPPOSITION
Tuesday, January 12, 2010OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
Tuesday, April 6, 2010NOA MAILED - SOU REQUIRED FROM APPLICANT
Monday, October 4, 2010SOU TEAS EXTENSION RECEIVED
Monday, October 4, 2010SOU EXTENSION 1 FILED
Monday, October 4, 2010SOU EXTENSION 1 GRANTED
Wednesday, October 6, 2010NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Tuesday, April 5, 2011SOU TEAS EXTENSION RECEIVED
Tuesday, April 5, 2011SOU EXTENSION 2 FILED
Wednesday, April 6, 2011CASE ASSIGNED TO INTENT TO USE PARALEGAL
Wednesday, April 6, 2011SOU EXTENSION 2 GRANTED
Thursday, April 7, 2011NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Thursday, April 28, 2011TEAS STATEMENT OF USE RECEIVED
Thursday, April 28, 2011USE AMENDMENT FILED
Monday, May 2, 2011STATEMENT OF USE PROCESSING COMPLETE
Friday, May 6, 2011ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
Friday, May 13, 2011LAW OFFICE REGISTRATION REVIEW COMPLETED
Saturday, May 14, 2011NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED
Tuesday, June 21, 2011REGISTERED-PRINCIPAL REGISTER
Friday, July 7, 2017TEAS SECTION 8 & 15 RECEIVED
Monday, August 14, 2017CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Monday, August 14, 2017REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Monday, June 21, 2021TEAS SECTION 8 & 9 RECEIVED
Monday, August 14, 2017NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
Sunday, June 21, 2020COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
Friday, June 18, 2021TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Friday, June 18, 2021ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Friday, June 18, 2021TEAS CHANGE OF CORRESPONDENCE RECEIVED
Wednesday, August 4, 2021TEAS CHANGE OF OWNER ADDRESS RECEIVED
Wednesday, August 4, 2021TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Wednesday, August 4, 2021ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Wednesday, August 4, 2021TEAS CHANGE OF CORRESPONDENCE RECEIVED
Wednesday, August 4, 2021APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Wednesday, November 3, 2021CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Wednesday, November 3, 2021REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
Wednesday, November 3, 2021REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
Wednesday, November 3, 2021NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
Monday, June 5, 2023TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Monday, June 5, 2023ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Monday, June 5, 2023TEAS CHANGE OF CORRESPONDENCE RECEIVED
Monday, September 23, 2024APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Monday, September 23, 2024ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Monday, September 23, 2024TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Monday, September 23, 2024TEAS CHANGE OF OWNER ADDRESS RECEIVED
Monday, September 23, 2024TEAS CHANGE OF CORRESPONDENCE RECEIVED

Related Keywords

silfex silicon mirrors devices windows namely optical lenses carbide sold metallic