Patent US1249035A successfully refreshed from Google Patents.
US1249035A
Expired / Lapsed
US
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Ditching-machine.
Assignee: American Hoist and Derrick Co
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Filing: 1914-03-31
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Granted: 1917-12-04
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Expires: 1934-03-31
Abstract
No abstract record available.
Inventors
- 👤 Oliver Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:17
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/627; E02F3/6273; Y; Y10; Y10S; Y10S414/00; Y10S414/126
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) | 1920-12-03 | 1921-06-04 | 1921-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-12-03 | 1925-06-04 | 1925-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-12-03 | 1929-06-04 | 1929-12-04 | $7700.00 | Window Closed / Lapsed |