US2828143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rear axle housing supported load equalizing trailer hitch
Assignee: Individual
•
Filing: 1957-04-26
•
Granted: 1958-03-25
•
Expires: 1977-04-26
Abstract
No abstract record available.
Inventors
- 👤 Vatz Christian R Da
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:39
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/30; B60D1/34; B60D1/345; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0857
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |