Patent US2973296A successfully refreshed from Google Patents.
US3027902A
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US
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Fluid motor throttle valve means responsive to motor exhaust pressure
Assignee: Specialties Development Corp
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Filing: 1960-03-31
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Granted: 1962-04-03
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Expires: 1980-03-31
Abstract
No abstract record available.
Inventors
- 👤 Warren E Herr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/461; F16H61/4035; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/363; F16H61/4043; F16H61/4052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1745266A
Cited
US1905132A
Cited
US1964196A
Cited
FR786189A
Cited
US2467398A
Cited
US2669098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |