PRESERFLO
Live / Registered — Registered — international registration renewed (as of 14 Jan 2026)
What this means for you
Registered since 22 Oct 2019. The owner can stop confusingly similar uses in the classes it covers; it stays on the register as long as the owner keeps up the maintenance filings (next due by 22 Oct 2029: the §71 ten-year affidavit of use).
Record
- Serial number
- 79260294
- Registration number
- 5887854
- Mark type
- Word mark
- Filed
- 18 Mar 2019
- Published for opposition
- 06 Aug 2019
- Registered
- 22 Oct 2019
- Next maintenance filing
- §71 ten-year affidavit of use, due by 22 Oct 2029 (grace period to 22 Apr 2030)
- Attorney of record
- Michele M. Glessner
Goods and services
- Class 010 — Medical apparatus: Ophthalmic medical device, namely, glaucoma tube shunt; surgical apparatus and instruments for use in ophthalmic surgery; medical device for non-laser glaucoma surgery; ocular implants and devices; ocular implants and devices for use in treating glaucoma; ocular implants and devices, namely, shunts, stents, ophthalmic cutting instruments, shunt and stent applicators, [ and vision screening instruments, ] for use in treating glaucoma
Owner
- Santen Pharmaceutical Co., Ltd., Osaka-fu, JP
- Santen Pharmaceutical Co., Ltd., JP
- Santen Pharmaceutical Co., Ltd., JP
Prosecution history
- 14 Sept 2026 — PARTIAL INVALIDATION OF REG EXT PROTECTION CREATED
- 10 Jul 2026 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
- 10 Jul 2026 — ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
- 10 Jul 2026 — TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
- 14 Jan 2026 — NOTICE OF ACCEPTANCE OF SEC. 71 & 15 - E-MAILED
- 14 Jan 2026 — REGISTERED - SEC. 71 ACCEPTED & SEC. 15 ACK.
- 12 Jan 2026 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 29 Aug 2025 — TEAS SECTION 71 & 15 RECEIVED
- 01 May 2020 — CHANGE OF NAME/ADDRESS REC'D FROM IB
- 03 Jan 2020 — NOTIFICATION PROCESSED BY IB
- 19 Dec 2019 — FINAL DISPOSITION NOTICE SENT TO IB
- 19 Dec 2019 — FINAL DISPOSITION PROCESSED
- 21 Nov 2019 — GRANT OF PROTECTION CREATED, TO BE SENT TO IB
- 22 Oct 2019 — REGISTERED-PRINCIPAL REGISTER
- 06 Aug 2019 — PUBLISHED FOR OPPOSITION