US2920434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible gang mowing machine
Assignee: Individual
•
Filing: 1957-12-23
•
Granted: 1960-01-12
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Richard L Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:18
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/30; A01D75/306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1693475A
Cited
US1849941A
Cited
US2134115A
Cited
US2167222A
Cited
US2816410A
Cited
US2724229A
Cited
US2743567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |