US2655933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-controlling system
Assignee: Thomas A Edison Inc
•
Filing: 1948-04-10
•
Granted: 1953-10-20
•
Expires: 1968-04-10
Abstract
No abstract record available.
Inventors
- 👤 Carl H Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:35
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US654631A
Cited
US1463986A
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US1760382A
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GB296231A
Cited
US1942241A
Cited
US1914541A
Cited
US2110313A
Cited
US2351828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |