Patent US2640274A successfully refreshed from Google Patents.
US2640274A
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US
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Apparatus for continuous gauging
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1947-01-25
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Granted: 1953-06-02
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Expires: 1967-01-25
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:26
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; G; G01; G01B; G01B21/00; G01B21/10; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/142; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 0
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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) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |