Patent US3431647A successfully refreshed from Google Patents.
US3431647A
Expired / Lapsed
US
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Hedge trimmer
Assignee: Portable Electric Tools Inc
•
Filing: 1966-04-18
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Granted: 1969-03-11
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 William H Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:56
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/04; A01G3/047; A01G3/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2664626A
Cited
US2650993A
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US2703930A
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US3079687A
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US3119942A
Cited
US3121813A
Cited
US3083457A
Cited
US3279062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |