Patent US2650679A successfully refreshed from Google Patents.
US2650679A
Expired / Lapsed
US
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Ground brake
Assignee: Individual
•
Filing: 1952-01-14
•
Granted: 1953-09-01
•
Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Durkin Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:54
CPC Classifications
B; B60; B60T; B60T1/00; B60T1/12; B60T1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US520278A
Cited
US1445562A
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US1476716A
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US1539476A
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US1837946A
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US1974773A
Cited
US2062931A
Cited
US2544774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |