US2937887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely controlled trailer hitch and stand
Assignee: Individual
•
Filing: 1957-05-07
•
Granted: 1960-05-24
•
Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry J Richman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:44
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02; B60S9/04; B60D; B60D1/00; B60D1/24; B60D1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE488969C
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DE639396C
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US2225157A
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US2207812A
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US2309618A
Cited
US2441285A
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US2442439A
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US2525471A
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US2478736A
Cited
US2788227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |