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US3433227A
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Surgical drains
Assignee: EDWARD L KETTENBACH
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Filing: 1965-10-25
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Granted: 1969-03-18
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Expires: 1985-10-25
Abstract
No abstract record available.
Inventors
- 👤 Edward L Kettenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108; A61B17/34; A61B17/3417; A61B17/3421; A61B17/3423; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/3488; A61B2217/00; A61B2217/002; A61B2217/005; A61B90/00; A61B90/40; A61M1/00; A61M1/71; A61M1/79; A61M2210/00; A61M2210/10; A61M2210/1042; A61M2210/1075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |