US3405959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid sealing means
Assignee: Filton Ltd
•
Filing: 1965-03-16
•
Granted: 1968-10-15
•
Expires: 1985-03-16
Abstract
No abstract record available.
Inventors
- 👤 Walker Gordon Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; F16J15/3496; F16C; F16C19/00; F16C19/02; F16C19/04; F16C19/06; Y; Y10; Y10S; Y10S277/00; Y10S277/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2305725A
Cited
US2331615A
Cited
US2503086A
Cited
US2531021A
Cited
US2498915A
Cited
US2723136A
Cited
US2797108A
Cited
US3058761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |