SILOCK Trademark

Trademark Overview


On Wednesday, September 6, 1967, a trademark application was filed for SILOCK with the United States Patent and Trademark Office. The USPTO has given the SILOCK trademark a serial number of 72279713. The federal status of this trademark filing is EXPIRED as of Saturday, June 6, 2009. This trademark is owned by CALGON CORPORATION. The SILOCK trademark is filed in the Chemical Products category with the following description:

PHOSPHATE-SILICATE-POLYMER BOILER COMPOUND

General Information


Serial Number72279713
Word MarkSILOCK
Filing DateWednesday, September 6, 1967
Status900 - EXPIRED
Status DateSaturday, June 6, 2009
Registration Number0859169
Registration DateTuesday, October 29, 1968
Mark Drawing1000 - Typeset: Word(s) / letter(s) / number(s)
Published for Opposition DateTuesday, August 13, 1968

Trademark Statements


Goods and ServicesPHOSPHATE-SILICATE-POLYMER BOILER COMPOUND

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 Codes006
Class Status Code9 - Expired
Class Status DateSaturday, June 6, 2009
Primary Code006
First Use Anywhere DateFriday, November 25, 1966
First Use In Commerce DateFriday, November 25, 1966

Trademark Owner History


Party NameMERCK & CO., INC.
Party Type40 - New Owner After Registration
Legal Entity Type03 - Corporation
AddressRAHWAY, NJ 070650900

Party NameCALGON CORPORATION
Party Type30 - Original Registrant
Legal Entity Type03 - Corporation
AddressPITTSBURGH, PA 15230

Party NameCALGON CORPORATION
Party Type10 - Original Applicant
Legal Entity Type03 - Corporation
AddressPITTSBURGH, PA 15230

Trademark Events


Event DateEvent Description
Saturday, June 6, 2009CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9
Monday, March 9, 2009CASE FILE IN TICRS
Saturday, October 29, 1988REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)
Wednesday, May 4, 1988REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8