Patent US3045413A successfully refreshed from Google Patents.
US3045413A
Expired / Lapsed
US
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Tandem mowing mechanism
Assignee: Individual
•
Filing: 1959-03-02
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Granted: 1962-07-24
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Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Sheffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:20
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/835; A01D34/86; A01D34/863; Y; Y10; Y10S; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732675A
Cited
US1869394A
Cited
US2411623A
Cited
US2648940A
Cited
US2791081A
Cited
US2851842A
Cited
US2838901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |