US2662785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid seal
Assignee: FED FAWICK CORP
•
Filing: 1950-07-08
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Granted: 1953-12-15
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Expires: 1970-07-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Fawick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:36
CPC Classifications
F; F16; F16L; F16L39/00; F16L39/06; Y; Y10; Y10S; Y10S277/00; Y10S277/907; Y10S277/91; Y10S285/00; Y10S285/918
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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |