Patent US3490787A successfully refreshed from Google Patents.
US3490787A
Expired / Lapsed
US
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Tractor counterweight assembly
Assignee: T-Tygart Industries Inc
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Filing: 1968-06-06
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Granted: 1970-01-20
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Expires: 1988-06-06
Abstract
No abstract record available.
Inventors
- 👤 Earl M Latterman
- 👤 Richard E Lacey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/06; B62D49/0621; B62D49/0628; B62D49/08; B62D49/085
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |