US2615264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoulder and ditch grading machine
Assignee: Individual
•
Filing: 1948-06-21
•
Granted: 1952-10-28
•
Expires: 1968-06-21
Abstract
No abstract record available.
Inventors
- 👤 Fenner L Satterthwaite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:15
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1507552A
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US1287526A
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US1429680A
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US1637673A
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US1913883A
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US1915919A
Cited
US2166800A
Cited
US2284463A
Cited
US2310396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |