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Patent US2453797A successfully refreshed from Google Patents.
US2453797A
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Crankshaft dressing tool
Assignee: ORAN ELMORE
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Filing: 1947-01-14
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Granted: 1948-11-16
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Expires: 1967-01-14
Abstract
No abstract record available.
Inventors
- 👤 Marshal D Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:03
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/22; B23B3/24; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T82/00; Y10T82/19; Y10T82/192
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |