Patent US2845639A successfully refreshed from Google Patents.
US2845639A
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Control apparatus for drilling and tapping machine
Assignee: CLEEREMAN MACHINE TOOL Co
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Filing: 1955-10-10
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Granted: 1958-08-05
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Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 William H Jorgensen
- 👤 Tyson William Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:24
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/16; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5163; Y10T29/5179; Y10T408/00; Y10T408/10; Y10T408/16; Y10T408/17; Y10T408/65; Y10T408/675; Y10T408/6771; Y10T408/6774; Y10T82/00; Y10T82/25; Y10T82/2531
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |