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US2928693A
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Automatic load-release coupler
Assignee: Individual
•
Filing: 1956-10-24
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Granted: 1960-03-15
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Expires: 1976-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Kenneth F Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:36
CPC Classifications
F; F41; F41F; F41F5/00; F41F5/04; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T279/17931; Y10T279/17941; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32229; Y10T403/32254
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |