US2778246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential transmission
Assignee: B L DIAMOND
•
Filing: 1952-01-28
•
Granted: 1957-01-22
•
Expires: 1972-01-28
Abstract
No abstract record available.
Inventors
- 👤 Ray F Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:14
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/24; F16H48/06; F16H48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1292818A
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US1481889A
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US1324859A
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US1344107A
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US1556101A
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US1529804A
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US1677682A
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US1750981A
Cited
US1883725A
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US1979414A
Cited
GB499048A
Cited
US2234591A
Cited
US2354214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |