US3477438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter having one-way inflations valve
Assignee: Individual
•
Filing: 1967-04-17
•
Granted: 1969-11-11
•
Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Dwight L Allen
- 👤 Glenn H Grable
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1018; A61M25/10184; A61M25/10185; A61M25/10186; A61B; A61B17/00; A61B17/34; A61F; A61F2/00; A61F2/95; A61F2/958; A61M25/0067; A61M25/0074; A61M25/0075; Y; Y10; Y10T; Y10T137/00; Y10T137/3584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190505917A
Cited
FR821676A
Cited
US2183900A
Cited
US2295804A
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US2896629A
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US2944580A
Cited
US3138161A
Cited
US3401714A
Cited
US3385301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |