US2589975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual control clutch and brake mechanism for motor vehicles
Assignee: Individual
•
Filing: 1950-09-20
•
Granted: 1952-03-18
•
Expires: 1970-09-20
Abstract
No abstract record available.
Inventors
- 👤 Robert B Sprinkel
- 👤 Haven D Umstott
- 👤 Jr Harold E Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:20
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/30; G05G1/34; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20189; Y10T74/20207; Y10T74/20372; Y10T74/20384; Y10T74/2039; Y10T74/20528; Y10T74/20576; Y10T74/20888; Y10T74/209; Y10T74/20906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US707706A
Cited
US1261425A
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US1181887A
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US1276472A
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US1558697A
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US1600305A
Cited
US2077150A
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US2166978A
Cited
GB584509A
Cited
US2406261A
Cited
US2512838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |