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US2490120A
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Drilling fixture
Assignee: BRUNSWICK-BALKE-COLLENDER Co
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Filing: 1946-07-19
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Granted: 1949-12-06
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Expires: 1966-07-19
Abstract
No abstract record available.
Inventors
- 👤 Clifford L Ellison
- 👤 Pospischek Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:31
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/14; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/4852; B23Q1/4857; B23Q16/00; B23Q16/006; Y; Y10; Y10S; Y10S408/00; Y10S408/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2269946A
Cited
US2356300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |