Patent US3058756A successfully refreshed from Google Patents.
US3058756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer construction for boats having warped undersurface
Assignee: Individual
•
Filing: 1961-06-05
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Granted: 1962-10-16
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Charles H Holsclaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:32
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P3/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2817537A
Cited
US2798625A
Cited
US2789713A
Cited
US2889946A
Cited
US2827188A
Cited
US2933328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |