US2547313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic trailer coupling
Assignee: Individual
•
Filing: 1948-12-07
•
Granted: 1951-04-03
•
Expires: 1968-12-07
Abstract
No abstract record available.
Inventors
- 👤 John R Gosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:45
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1437836A
Cited
US1408501A
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US1448950A
Cited
US1588942A
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US1939463A
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US2183990A
Cited
US2217148A
Cited
US2269806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |