Patent US2653256A successfully refreshed from Google Patents.
US2653256A
Expired / Lapsed
US
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Electric motor brake coupling assembly
Assignee: Jack & Heintz Prec Ind Inc
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Filing: 1951-08-04
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Granted: 1953-09-22
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Expires: 1971-08-04
Abstract
No abstract record available.
Inventors
- 👤 Omar C Walley
- 👤 Robert L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:52
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/112; H02K7/1125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US665318A
Cited
US1134739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |