Patent US2955845A successfully refreshed from Google Patents.
US2955845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin engine crawler tractor
Assignee: Motors Liquidation Co
•
Filing: 1954-09-14
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Granted: 1960-10-11
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Expires: 1974-09-14
Abstract
No abstract record available.
Inventors
- 👤 John P Carroll
- 👤 Mazzarins Janis
- 👤 Edwin J Selyem
- 👤 Russell C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:03
CPC Classifications
B; B62; B62D; B62D11/00; B62D11/02; B62D11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US684793A
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US1429464A
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US1430251A
Cited
US1675013A
Cited
US2075085A
Cited
US2100490A
Cited
US2513942A
Cited
US2572911A
Cited
US2551231A
Cited
US2678105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |