US3011845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic actuator shaft seal
Assignee: Individual
•
Filing: 1959-10-06
•
Granted: 1961-12-05
•
Expires: 1979-10-06
Abstract
No abstract record available.
Inventors
- 👤 Everett C Watt
- 👤 Lynn A Watt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; Y; Y10; Y10S; Y10S92/00; Y10S92/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US451209A
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US917690A
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US2430836A
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US2437814A
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US2649077A
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US2832650A
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US2797971A
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US2860019A
Cited
US2942582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |