Patent US2151920A successfully refreshed from Google Patents.
US2151920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitching
Assignee: Houdaille Hershey Corp
•
Filing: 1937-06-05
•
Granted: 1939-03-28
•
Expires: 1957-06-05
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Jandus
- 👤 Brooke Harold Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:41
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/56; B60D1/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-03-27 | 1942-09-26 | 1943-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-27 | 1946-09-26 | 1947-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-27 | 1950-09-26 | 1951-03-28 | $7700.00 | Window Closed / Lapsed |