US2750644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick release attachment for safety belts
Assignee: Individual
•
Filing: 1952-08-08
•
Granted: 1956-06-19
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Donald W Martin
- 👤 Ralph L Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/02; B64D25/06; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3484
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US408308A
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US746197A
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FR435459A
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US1275034A
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US1471537A
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US2275450A
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US2331309A
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US2313397A
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US2430985A
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US2473554A
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US2591487A
Cited
US2708083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |