US2973818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled trailer for liquid fertilizer applying apparatus
Assignee: Individual
•
Filing: 1956-07-26
•
Granted: 1961-03-07
•
Expires: 1976-07-26
Abstract
No abstract record available.
Inventors
- 👤 George I N Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US186865A
Cited
US417466A
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US2731901A
Cited
US1484622A
Cited
US1927458A
Cited
US2095417A
Cited
FR906280A
Cited
US2597533A
Cited
US2619016A
Cited
US2750724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |