US3143090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil treating apparatus
Assignee: Individual
•
Filing: 1962-05-04
•
Granted: 1964-08-04
•
Expires: 1982-05-04
Abstract
No abstract record available.
Inventors
- 👤 Robert D Cecil
- 👤 Jr Charles H Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:52
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1171277A
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US1202703A
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US1117333A
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US1490222A
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US2649061A
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US2690145A
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US2789522A
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US2768570A
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US2845884A
Cited
US2866422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |