US2838232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for converting a mechanical torque to a d.-c. current
Assignee: Daystrom Inc
•
Filing: 1952-11-25
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Granted: 1958-06-10
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Expires: 1972-11-25
Abstract
No abstract record available.
Inventors
- 👤 Roswell W Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:29
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1929431A
Cited
US2068116A
Cited
US2535250A
Cited
US2459106A
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US2667071A
Cited
US2686635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |