US2948519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile earth surfacing apparatus
Assignee: CALIFORNIA FRESNO INVESMENT CO
•
Filing: 1958-07-21
•
Granted: 1960-08-09
•
Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Wilbert C Bradshaw
- 👤 Dolph W Ruschhaupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:51
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US737273A
Cited
US1941808A
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US1997037A
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US1969533A
Cited
US2103299A
Cited
US2327942A
Cited
US2350715A
Cited
US2611707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |