US1508138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller for motor-operated valves
Assignee: Cutler Hammer Manufacturing Co
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Filing: 1920-03-08
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Granted: 1924-09-09
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Expires: 1940-03-08
Abstract
No abstract record available.
Inventors
- 👤 Edward T Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:12
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2013; G05D16/202; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7731; Y10T137/7758; Y10T137/7762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-09-09 | 1928-03-10 | 1928-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-09 | 1932-03-10 | 1932-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-09 | 1936-03-10 | 1936-09-09 | $7700.00 | Window Closed / Lapsed |