Patent US3767788A successfully refreshed from Google Patents.
US3767788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmic solution
Assignee: Alcon Vision LLC
•
Filing: 1970-06-08
•
Granted: 1973-10-23
•
Expires: 1990-06-08
Abstract
Abstract AN OPHTHALMIC SOLUTION IS PROVIDED FOR TREATMENT OF "DRY EYE," PROVIDING LUBICATING AND CUSHIONING EFFECTS FOR TRAUMATIZED EYES, INCLUDING TRAUMA CAUSED BY THE WEARING OF HARD OR GEL-TYPE CONTACT LENSES, AND A CARRIER FOR OPHTHALMIC MEDICAMENTS. THE SOLUITON IS AN AQUEOUS SOLUTION OF POLYETHYLENE OXIDE, OPTIONALLY POLYTHYLENE GLYCOL, AND OTHER OPTIONAL INGREDIENTS.
Inventors
- 👤 B Rankin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0048
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |