Patent US1787686A successfully refreshed from Google Patents.
US3486501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abdominal scultetus
Assignee: Coopers Inc
•
Filing: 1967-09-15
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Granted: 1969-12-30
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Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 Wallace R Erickson
- 👤 John G Whitcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:23
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1206525A
Cited
US2431571A
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US3029814A
Cited
US3142300A
Cited
US3207155A
Cited
US3194234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |