Patent US2833557A successfully refreshed from Google Patents.
US2833557A
Expired / Lapsed
US
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Control device for tractor-trailer combination
Assignee: Shepherd Tractor & Equipment C
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Filing: 1954-09-20
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Granted: 1958-05-06
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Expires: 1974-09-20
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Palmiter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:47
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/08; E02F9/0841; B; B62; B62D; B62D12/00; E02F3/00; E02F3/04; E02F3/64; E02F3/6454
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2360902A
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US2368202A
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US2362262A
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US2557066A
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US2614644A
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US2565285A
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US2638998A
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US2709088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |