US3472231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfect circle hemorrhoidal excisor,stapler and excisor hemostatic dilator
Assignee: FORNEY D WINNER
•
Filing: 1966-06-20
•
Granted: 1969-10-14
•
Expires: 1986-06-20
Abstract
No abstract record available.
Inventors
- 👤 Benjamin W Niebel
- 👤 Richard N Stover
- 👤 Forney D Winner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/11; A61B17/1114
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1344227A
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US834047A
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US1063750A
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US1918890A
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US2108206A
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US2434030A
Cited
US2638901A
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US2881762A
Cited
US3168096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |