US2457693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mower attachment for tractors
Assignee: BURCH CORP
•
Filing: 1945-01-24
•
Granted: 1948-12-28
•
Expires: 1965-01-24
Abstract
No abstract record available.
Inventors
- 👤 Walter K Leicy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:20
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/30; A01D34/38; Y; Y10; Y10S; Y10S56/00; Y10S56/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1958405A
Cited
US2259889A
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US2310387A
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US2292962A
Cited
US2328838A
Cited
US2311117A
Cited
US2324563A
Cited
US2375912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-28 | 1952-06-28 | 1952-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-28 | 1956-06-28 | 1956-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-28 | 1960-06-28 | 1960-12-28 | $7700.00 | Window Closed / Lapsed |