US1485865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control and regulation of energy-conversion machine
Assignee: Cutler Hammer Manufacturing Co
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Filing: 1920-02-12
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Granted: 1924-03-04
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Expires: 1940-02-12
Abstract
No abstract record available.
Inventors
- 👤 Meyer Friedrich Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:13
CPC Classifications
F; F16; F16K; F16K99/00; F16K99/0001; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0971; Y10T137/1026
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) | 1927-03-04 | 1927-09-03 | 1928-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-04 | 1931-09-03 | 1932-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-04 | 1935-09-03 | 1936-03-04 | $7700.00 | Window Closed / Lapsed |