US3023564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn mower with reciprocating cutter driven by a free piston internal combustion engine
Assignee: TENNEY
•
Filing: 1959-02-04
•
Granted: 1962-03-06
•
Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 William L Tenney
- 👤 John E Eastman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:39
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; F; F02; F02B; F02B71/00; F02B71/04; A01D2101/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1087465A
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US1187977A
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US2101608A
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US2223095A
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US2474131A
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US2497781A
Cited
US2628599A
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US2638080A
Cited
US2721435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |