Patent US2780467A successfully refreshed from Google Patents.
US2780467A
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Eccentric boring head
Assignee: BEAVER TOOL AND ENGINCERING CO
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Filing: 1954-03-26
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Granted: 1957-02-05
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Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Robert O Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:38
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03403; B23B29/03428; B23B2260/00; B23B2260/088; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/854; Y10T82/00; Y10T82/25; Y10T82/2568; Y10T82/2571
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1718089A
Cited
US2120638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |