Patent US3337161A successfully refreshed from Google Patents.
US2677069A
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US
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Device for producing x-rays
Assignee: Individual
•
Filing: 1951-05-26
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Granted: 1954-04-27
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Expires: 1971-05-26
Abstract
No abstract record available.
Inventors
- 👤 Charles H Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:22
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056401A
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US1808430A
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US1688854A
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US1993058A
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US2046808A
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US2097002A
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US2290226A
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US2472745A
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US2497543A
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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) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |