Patent US2893447A successfully refreshed from Google Patents.
US2893447A
Expired / Lapsed
US
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Conversion kit for chain saws
Assignee: Individual
•
Filing: 1953-05-04
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Granted: 1959-07-07
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Leland J Showers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:02
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/0016; B27B5/00; B27B5/16; B27B5/22; B27B5/224; B27C; B27C9/00; B27C9/02; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE16815E
Cited
US1040233A
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US1724459A
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US1770294A
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US1733062A
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US2256786A
Cited
US2326854A
Cited
US2559258A
Cited
US2578097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |