US2859641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gear mechanism
Assignee: Individual
•
Filing: 1955-02-21
•
Granted: 1958-11-11
•
Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Vernon E Gleasman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:18
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/28; F16H48/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1268429A
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US1164770A
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US1399045A
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US1294040A
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US1373657A
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US1968278A
Cited
FR768330A
Cited
US2022141A
Cited
DE700661C
Cited
FR893311A
Cited
US2559916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |