Patent US3056458A successfully refreshed from Google Patents.
US3056458A
Expired / Lapsed
US
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Tractor hitch organization
Assignee: Individual
•
Filing: 1959-06-03
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Granted: 1962-10-02
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Expires: 1979-06-03
Abstract
No abstract record available.
Inventors
- 👤 Harold P Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:14
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/002; A01B59/004; A01B59/008; A01B59/04; A01B59/041; A01B59/06; A01B59/066; A01B59/067; B; B60; B60D; B60D1/00; B60D1/24; B60D1/42; B60D1/46; B60D1/465; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |