US2651215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nontorque-equalizing differential transmission
Assignee: DUALOC ENGINEERING Co
•
Filing: 1951-03-03
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Granted: 1953-09-08
•
Expires: 1971-03-03
Abstract
No abstract record available.
Inventors
- 👤 Otto R Schoenrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:04
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US827095A
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US843687A
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FR383235A
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US1108800A
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US1409535A
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US2090130A
Cited
GB418582A
Cited
GB507534A
Cited
US2481873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |