US2684492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination drilling and tapping tool
Assignee: General Electric Co
•
Filing: 1949-10-25
•
Granted: 1954-07-27
•
Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Miner Ernest Fordyce
- 👤 Davis Hiram Sylvester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:41
CPC Classifications
B; B23; B23G; B23G5/00; B23G5/20; B23G2200/00; B23G2200/14; B23G2200/143; B23G2200/146; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/904; Y10T408/9046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US93824A
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US1020860A
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US1294268A
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US1698951A
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US1746046A
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US1845063A
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US2345985A
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US2403359A
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US2479730A
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US2401307A
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US2587980A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |