US2507622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring engaging hook assembly for brake spring tools
Assignee: Individual
•
Filing: 1948-10-29
•
Granted: 1950-05-16
•
Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 Frank J Brugmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:26
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; Y10T29/53796; Y10T29/53896; Y10T29/539
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US973760A
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US983782A
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US1582011A
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US1862326A
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US1938102A
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US1917878A
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US1953930A
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US1951953A
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US1949343A
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US2329591A
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US2474940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |