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US2840718A
Expired / Lapsed
US
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X-ray apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1954-03-26
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Granted: 1958-06-24
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Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Wright
- 👤 William C Whittenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:33
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/265; H05G1/30; H05G1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2353979A
Cited
US2745020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |