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US1340497A
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Grading-machine
Assignee: INTERNAT FARM IMPLEMENT COMPAN
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Filing: 1919-07-22
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Granted: 1920-05-18
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Expires: 1939-07-22
Abstract
No abstract record available.
Inventors
- 👤 John R Pile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:02
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7663; E02F3/7668
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) | 1923-05-18 | 1923-11-17 | 1924-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-05-18 | 1927-11-17 | 1928-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-05-18 | 1931-11-17 | 1932-05-18 | $7700.00 | Window Closed / Lapsed |