PROTEOSTASIS THERAPEUTICS

Dead / Cancelled — Cancelled — Section 8 (as of 21 Aug 2026)

What this means for you

This registration has been cancelled; it no longer blocks anyone on its own. The name may be available, but check before relying on it — rights can also come from actual use, not only from the register.

Record

Serial number
88363795
Registration number
5986569
Mark type
Stylized text
Filed
29 Mar 2019
Registered
11 Feb 2020
Attorney of record
John L. DuPre'

Goods and services

  • Class 005 — Pharmaceuticals: Pharmaceutical preparations for the treatment of disorders in the nature of digestive disorders, ophthalmic disorders, hepatic disorders, respiratory disorders, sweat disorder, pancreatic disorders, reproductive disorders, and endocrine disorders; medical diagnostic assays for testing of body fluids; medical diagnostic assays for testing human cells for responses to therapy

Owner

Prosecution history

  • 21 Aug 2026 — CANCELLED SEC. 8 (6-YR)
  • 11 Feb 2025 — COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
  • 11 Feb 2020 — REGISTERED-SUPPLEMENTAL REGISTER
  • 03 Jan 2020 — LAW OFFICE PUBLICATION REVIEW COMPLETED
  • 26 Dec 2019 — ASSIGNED TO LIE
  • 24 Dec 2019 — NOTICE OF ACCEPTANCE OF AMENDMENT TO ALLEGE USE E-MAILED
  • 21 Dec 2019 — APPROVED FOR REGISTRATION SUPPLEMENTAL REGISTER
  • 21 Dec 2019 — USE AMENDMENT ACCEPTED
  • 21 Dec 2019 — AMENDMENT TO USE PROCESSING COMPLETE
  • 21 Dec 2019 — USE AMENDMENT FILED
  • 20 Dec 2019 — TEAS AMENDMENT OF USE RECEIVED
  • 20 Dec 2019 — TEAS/EMAIL CORRESPONDENCE ENTERED
  • 20 Dec 2019 — CORRESPONDENCE RECEIVED IN LAW OFFICE
  • 20 Dec 2019 — TEAS RESPONSE TO OFFICE ACTION RECEIVED
  • 20 Jun 2019 — NOTIFICATION OF NON-FINAL ACTION E-MAILED

View this trademark record on Marksy