Patent US2522611A successfully refreshed from Google Patents.
US2522611A
Expired / Lapsed
US
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Brake spring tool
Assignee: Individual
•
Filing: 1948-08-25
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Granted: 1950-09-19
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Expires: 1968-08-25
Abstract
No abstract record available.
Inventors
- 👤 Russell N Guth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:37
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/30; B25B27/302; B25B27/306; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/221; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53613; Y10T29/53622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US869402A
Cited
US1017147A
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US1157223A
Cited
US1483821A
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US1862326A
Cited
US1917878A
Cited
US1949343A
Cited
FR47967E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |