US2523640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mowing machine guard
Assignee: POWER DEV Co Inc
•
Filing: 1946-10-09
•
Granted: 1950-09-26
•
Expires: 1966-10-09
Abstract
No abstract record available.
Inventors
- 👤 Edward H Zipf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:05
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/82; A01D34/828; A01D2101/00; Y; Y10; Y10S; Y10S56/00; Y10S56/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326094A
Cited
US1347937A
Cited
US1068363A
Cited
US1523978A
Cited
US2208972A
Cited
US2188110A
Cited
US2278922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |