US3460541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endotracheal intubation tubes
Assignee: Individual
•
Filing: 1966-10-06
•
Granted: 1969-08-12
•
Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 George O Doherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:38
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0402; A61M16/0418; A61M16/0434; A61M16/0443; A61M16/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US249557A
Cited
US281043A
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US397060A
Cited
US504424A
Cited
US1315955A
Cited
US2458305A
Cited
US2813531A
Cited
US2876767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |