Patent US5271381A successfully refreshed from Google Patents.
US2883986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endotracheal cuff
Assignee: Davol Rubber Co
•
Filing: 1957-09-24
•
Granted: 1959-04-28
•
Expires: 1977-09-24
Abstract
No abstract record available.
Inventors
- 👤 Luca Walter G De
- 👤 William A Gants
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:18
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2175726A
Cited
US2792837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |