| Serial Number | 86742480 |
| Word Mark | PTI PROTEOSTASIS THERAPEUTICS, INC. |
| Filing Date | Monday, August 31, 2015 |
| Status | 710 - CANCELLED - SECTION 8 |
| Status Date | Friday, December 12, 2025 |
| Registration Number | 5763757 |
| Registration Date | Tuesday, May 28, 2019 |
| Mark Drawing | 3 - Illustration: Drawing or design which also includes word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, March 1, 2016 |
| Indication of Colors claimed | The color(s) white, dark blue, light blue, purple, and gray is/are claimed as a feature of the mark. |
| Goods and Services | Pharmaceutical preparations for the treatment of respiratory conditions, diseases, syndromes and disorders |
| Description of Mark | The mark consists of an image of a lotus consisting of the colors purple, dark blue and light blue. The letters "PTI" appear in white within the lotus. To the right of the lotus appears the word "PROTEOSTASIS" in light blue, which is directly above the words "THERAPEUTICS, INC." in gray. |
| NOT AVAILABLE | "PROTEOSTASIS THERAPEUTICS, INC." |
| Goods and Services | Chemicals for scientific research purposes for synthesizing small molecule compounds; proteostasis regulators, namely, chemical preparations for scientific research; chemical additives for use in the manufacture of pharmaceuticals; cells for scientific and medical research; reagents for use in genetic research |
| International Class | 001 - 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 Codes | 001, 005, 006, 010, 026, 046 |
| Class Status Code | 2 - Sec. 8 - Entire Registration |
| Class Status Date | Friday, December 12, 2025 |
| Primary Code | 001 |
| First Use Anywhere Date | Monday, January 14, 2013 |
| First Use In Commerce Date | Monday, January 14, 2013 |
| International Class | 005 - Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes; dietetic substances adapted for medical use, food for babies; plasters, materials for dressings; material for stopping teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides. |
| US Class Codes | 006, 018, 044, 046, 051, 052 |
| Class Status Code | 2 - Sec. 8 - Entire Registration |
| Class Status Date | Friday, December 12, 2025 |
| Primary Code | 005 |
| First Use Anywhere Date | Saturday, January 30, 2016 |
| First Use In Commerce Date | Saturday, January 30, 2016 |
| Party Name | Proteostasis Therapeutics, Inc. |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 03 - Corporation |
| Address | Boston, MA 02135 |
| Party Name | Proteostasis Therapeutics, Inc. |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 03 - Corporation |
| Address | Boston, MA 02135 |
| Party Name | Proteostasis Therapeutics, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Cambridge, MA 02139 |
| Event Date | Event Description |
| Thursday, September 3, 2015 | NEW APPLICATION ENTERED |
| Thursday, September 3, 2015 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Friday, September 4, 2015 | NOTICE OF DESIGN SEARCH CODE E-MAILED |
| Monday, December 14, 2015 | ASSIGNED TO EXAMINER |
| Monday, December 21, 2015 | NON-FINAL ACTION WRITTEN |
| Monday, December 21, 2015 | NON-FINAL ACTION E-MAILED |
| Monday, December 21, 2015 | NOTIFICATION OF NON-FINAL ACTION E-MAILED |
| Friday, January 8, 2016 | EXAMINERS AMENDMENT -WRITTEN |
| Friday, January 8, 2016 | EXAMINERS AMENDMENT E-MAILED |
| Friday, January 8, 2016 | NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED |
| Friday, January 8, 2016 | EXAMINER'S AMENDMENT ENTERED |
| Friday, January 8, 2016 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, February 10, 2016 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Tuesday, March 1, 2016 | PUBLISHED FOR OPPOSITION |
| Tuesday, March 1, 2016 | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |
| Tuesday, April 26, 2016 | NOA E-MAILED - SOU REQUIRED FROM APPLICANT |
| Tuesday, July 19, 2016 | TEAS CHANGE OF CORRESPONDENCE RECEIVED |
| Wednesday, October 26, 2016 | SOU TEAS EXTENSION RECEIVED |
| Wednesday, October 26, 2016 | SOU EXTENSION 1 FILED |
| Wednesday, October 26, 2016 | SOU EXTENSION 1 GRANTED |
| Friday, October 28, 2016 | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED |
| Tuesday, April 25, 2017 | SOU TEAS EXTENSION RECEIVED |
| Tuesday, April 25, 2017 | SOU EXTENSION 2 FILED |
| Tuesday, April 25, 2017 | SOU EXTENSION 2 GRANTED |
| Thursday, April 27, 2017 | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED |
| Friday, September 8, 2017 | SOU TEAS EXTENSION RECEIVED |
| Friday, September 8, 2017 | SOU EXTENSION 3 FILED |
| Friday, September 8, 2017 | SOU EXTENSION 3 GRANTED |
| Tuesday, September 12, 2017 | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED |
| Monday, February 12, 2018 | SOU TEAS EXTENSION RECEIVED |
| Monday, February 12, 2018 | SOU EXTENSION 4 FILED |
| Monday, February 12, 2018 | SOU EXTENSION 4 GRANTED |
| Wednesday, February 14, 2018 | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED |
| Wednesday, September 5, 2018 | SOU TEAS EXTENSION RECEIVED |
| Thursday, September 13, 2018 | CASE ASSIGNED TO INTENT TO USE PARALEGAL |
| Wednesday, September 5, 2018 | SOU EXTENSION 5 FILED |
| Thursday, September 13, 2018 | SOU EXTENSION 5 GRANTED |
| Friday, September 14, 2018 | NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED |
| Thursday, March 28, 2019 | TEAS STATEMENT OF USE RECEIVED |
| Thursday, March 28, 2019 | TEAS CHANGE OF CORRESPONDENCE RECEIVED |
| Thursday, March 28, 2019 | USE AMENDMENT FILED |
| Saturday, April 6, 2019 | STATEMENT OF USE PROCESSING COMPLETE |
| Saturday, April 6, 2019 | APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED |
| Thursday, April 25, 2019 | ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED |
| Friday, April 26, 2019 | NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED |
| Tuesday, May 28, 2019 | REGISTERED-PRINCIPAL REGISTER |
| Friday, August 23, 2019 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Friday, August 23, 2019 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Friday, December 12, 2025 | CANCELLED SEC. 8 (6-YR) |