Patent US2954836A successfully refreshed from Google Patents.
US2954836A
Expired / Lapsed
US
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Self cleaning friction drive for lawn mowers
Assignee: Individual
•
Filing: 1958-06-09
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Granted: 1960-10-04
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Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Cavanaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:01
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/46; A01D34/47; A01D34/475; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US931982A
Cited
US1200347A
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US1517338A
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US1939325A
Cited
DE647943C
Cited
US2203463A
Cited
US2236027A
Cited
US2647619A
Cited
US2691421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |