US2928223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor mounted rotary mower attachment
Assignee: Danuser Machine Works Inc
•
Filing: 1956-07-20
•
Granted: 1960-03-15
•
Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 Walter W Danuser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:27
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/661; Y; Y10; Y10S; Y10S56/00; Y10S56/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2369850A
Cited
US2578880A
Cited
US2514407A
Cited
US2688833A
Cited
US2659191A
Cited
US2690040A
Cited
US2756833A
Cited
US2681536A
Cited
US2801510A
Cited
US2711624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |