Patent US3534981A successfully refreshed from Google Patents.
US3534981A
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US
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Trailer load balancing and stabilizing device
Assignee: Individual
•
Filing: 1968-08-27
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Granted: 1970-10-20
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Expires: 1988-08-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur K Moulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:26
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/50; B60D1/24; B60D1/30; B60D1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2546206A
Cited
US2507189A
Cited
US2691533A
Cited
US2847231A
Cited
US3093393A
Cited
US3295866A
Cited
US3414294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |