US3517941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter-weight attachment for a tractor
Assignee: Case LLC
•
Filing: 1968-09-17
•
Granted: 1970-06-30
•
Expires: 1988-09-17
Abstract
No abstract record available.
Inventors
- 👤 Edward J Lazzeroni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/08; B62D49/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2490014A
Cited
US3032352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |