US3481613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static fluid-tight seals
Assignee: BAC AND BRITISH AEROSPACE
•
Filing: 1966-09-26
•
Granted: 1969-12-02
•
Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Royston George Walter Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB111319A
Cited
US1635482A
Cited
GB495874A
Cited
US2967727A
Cited
FR1152478A
Cited
NL6407937A
Cited
US3322433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |