US2997591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive-source floor stand unit
Assignee: Westinghouse Electric Corp
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Filing: 1958-01-20
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Granted: 1961-08-22
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Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 Robert L Guentner
- 👤 Eugene P Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:25
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; G; G21; G21F; G21F5/00; G21F5/02; H; H05; H05F; H05F3/00; H05F3/06
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |