Patent US3735762A successfully refreshed from Google Patents.
Patent US3478743A successfully refreshed from Google Patents.
US3478743A
Expired / Lapsed
US
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Closed urinary drainage system
Assignee: Elliot Laboratories Inc
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Filing: 1967-09-20
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Granted: 1969-11-18
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Expires: 1987-09-20
Abstract
No abstract record available.
Inventors
- 👤 Richard E Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:04
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/4404; A61F5/441; A61M; A61M1/00; A61M1/69
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |