US2445134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor-trailer construction
Assignee: Individual
•
Filing: 1945-08-09
•
Granted: 1948-07-13
•
Expires: 1965-08-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Randal B Curell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:19
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR608521A
Cited
US1923255A
Cited
US2271304A
Cited
US2259612A
Cited
US2273503A
Cited
US2347524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |