Patent US1386867A successfully refreshed from Google Patents.
US1386867A
Expired / Lapsed
US
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Power lift mechanism for plows
Assignee: OLIVER CHILLED PLOW WORKS
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Filing: 1918-04-09
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Granted: 1921-08-09
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Expires: 1938-04-09
Abstract
No abstract record available.
Inventors
- 👤 Edward M Heylman
- 👤 Leon V Kingsbury
- 👤 Lloyd W Stickley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:44
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/14; A01B63/16; A01B63/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-08-08 | 1925-02-07 | 1925-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-08 | 1929-02-07 | 1929-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-08 | 1933-02-07 | 1933-08-09 | $7700.00 | Window Closed / Lapsed |