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Patent US3752159B1 successfully refreshed from Google Patents.
US3752159B1
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US3752159B1 - - Google Patents
Assignee: Circon Corp
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Filing: 1971-05-03
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Granted: 1984-07-17
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Expires: 1991-05-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/149; A61M; A61M1/00; A61M1/71; A61M1/77; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61M3/00; A61M3/02; A61M3/0279; A61M3/0283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |