Patent DE433307C successfully refreshed from Google Patents.
Patent US2082965A successfully refreshed from Google Patents.
US2082965A
Expired / Lapsed
US
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Fluoroscopic shutter control mechanism
Assignee: Westinghouse X Ray Co
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Filing: 1933-03-31
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Granted: 1937-06-08
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Expires: 1953-03-31
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:17
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-06-07 | 1940-12-07 | 1941-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-07 | 1944-12-07 | 1945-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-07 | 1948-12-07 | 1949-06-08 | $7700.00 | Window Closed / Lapsed |