US3524563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: COCHRAN WESTERN CORP
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Filing: 1968-05-24
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Granted: 1970-08-18
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Expires: 1988-05-24
Abstract
No abstract record available.
Inventors
- 👤 Duane N Mccartney
- 👤 Arnold Duerksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:10
CPC Classifications
B; B65; B65G; B65G67/00; B64; B64F; B64F1/00; B64F1/32; B64F1/322; B65G2814/00; B65G2814/03; B65G2814/0398
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) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |