US2628489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic control
Assignee: Robertshaw Controls Co
•
Filing: 1947-06-03
•
Granted: 1953-02-17
•
Expires: 1967-06-03
Abstract
No abstract record available.
Inventors
- 👤 Charles D Branson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:19
CPC Classifications
D; D06; D06F; D06F33/00; D06F33/04; D06F33/08; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/8593; Y10T137/86928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2064053A
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US2030092A
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US2187465A
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US2200226A
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US2478702A
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US2391492A
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US2444631A
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US2453707A
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US2475503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |