US2901843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subgrade planer
Assignee: Individual
•
Filing: 1953-12-10
•
Granted: 1959-09-01
•
Expires: 1973-12-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas Tom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:24
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/78; E02F3/783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1347008A
Cited
US1849754A
Cited
US2043413A
Cited
US2295519A
Cited
US2481679A
Cited
US2444977A
Cited
US2591502A
Cited
US2659166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |