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Patent US2609709A successfully refreshed from Google Patents.
US2609709A
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Differential gear control device
Assignee: Individual
•
Filing: 1950-06-02
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Granted: 1952-09-09
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Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 Louis H Pixler
- 👤 Harry B Pixler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:32
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1285017A
Cited
US1057466A
Cited
US1750981A
Cited
US1979414A
Cited
US2431272A
Cited
US2410921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |