US2886065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable one-way restriction valve
Assignee: International Motors LLC
•
Filing: 1955-08-26
•
Granted: 1959-05-12
•
Expires: 1975-08-26
Abstract
No abstract record available.
Inventors
- 👤 Gordon L Hershman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:19
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K1/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US744625A
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US702157A
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US1165230A
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US1726885A
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US1781366A
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US1915553A
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US2144228A
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US2220620A
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US2684079A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |