US2866422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil-treating apparatus
Assignee: Individual
•
Filing: 1956-04-19
•
Granted: 1958-12-30
•
Expires: 1976-04-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Colson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:53
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)
DE225866C
Cited
US7273A
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US581416A
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US2384469A
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US1171277A
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US2072331A
Cited
US2649061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |