US2789834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch load equalizer
Assignee: Individual
•
Filing: 1955-07-29
•
Granted: 1957-04-23
•
Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 B J Chism
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:42
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/30; B60D1/34; B60D1/345; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/068
Claims Analysis
Total Claims: 0
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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) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |