US2930630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor and semitrailer combination with weight transfer mechanism
Assignee: Allis Chalmers Corp
•
Filing: 1956-06-20
•
Granted: 1960-03-29
•
Expires: 1976-06-20
Abstract
No abstract record available.
Inventors
- 👤 Willard H Tanke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA474957A
Cited
US1654939A
Cited
FR677061A
Cited
GB487895A
Cited
US2266913A
Cited
US2382449A
Cited
US2627796A
Cited
US2633366A
Cited
US2673092A
Cited
US2779604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |