US3520120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery operated edger-trimmer and power scythe
Assignee: Black and Decker Inc
•
Filing: 1968-01-22
•
Granted: 1970-07-14
•
Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 John R Hardin Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:56
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/06; A01G3/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2630665A
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US2817205A
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US2826889A
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US2767541A
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US2867960A
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US2924929A
Cited
US2909885A
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US2968903A
Cited
US3087295A
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US3219129A
Cited
US3176455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |