US2938537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shut-off valve rate of operating control
Assignee: Garrett Corp
•
Filing: 1953-06-01
•
Granted: 1960-05-31
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Silver Alexander
- 👤 Raymond W Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:35
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/42; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7769; Y10T137/777; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311536A
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US843174A
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US1228104A
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US1623444A
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US1711066A
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US2005773A
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US2158068A
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US2196279A
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US2354423A
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US2307314A
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US2374708A
Cited
US2370110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |