Patent US2983887A successfully refreshed from Google Patents.
US2983887A
Expired / Lapsed
US
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Radiation sensitive devices
Assignee: Barnes Engineering Co
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Filing: 1954-09-29
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Granted: 1961-05-09
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Expires: 1974-09-29
Abstract
No abstract record available.
Inventors
- 👤 Eric M Wormser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:33
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; H; H01; H01C; H01C7/00; H01C7/04; H01C7/042; H01C7/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |