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Patent US3021881A successfully refreshed from Google Patents.
US3021881A
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US
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Power saw
Assignee: YUBA CONS IND Inc
•
Filing: 1959-01-28
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Granted: 1962-02-20
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Expires: 1979-01-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John W Edgemond
- 👤 John J O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:19
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/16; B27B5/22; B27B5/24; B27B5/243; B23; B23Q; B23Q1/00; B23Q1/72; B23Q1/74; B23Q3/00; B23Q3/005; Y; Y10; Y10T; Y10T83/00; Y10T83/727; Y10T83/768; Y10T83/7684; Y10T83/7701; Y10T83/7705
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1938548A
Cited
US2013778A
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US2237615A
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US2633221A
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US2806493A
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US2748812A
Cited
US2919729A
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US2927612A
Cited
US2818092A
Cited
US2945516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |