US2961251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel adjustment for mowers
Assignee: ROBERTON Manufacturing CO
•
Filing: 1958-04-25
•
Granted: 1960-11-22
•
Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 Frederic A Roberton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:52
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/74; A01D2101/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US255991A
Cited
US2041376A
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GB608965A
Cited
US2418693A
Cited
US2709602A
Cited
US2726630A
Cited
US2740135A
Cited
US2797928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |