Patent US2477307A successfully refreshed from Google Patents.
US2477307A
Expired / Lapsed
US
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Combined x-ray and fluoroscopic apparatus
Assignee: Individual
•
Filing: 1946-11-09
•
Granted: 1949-07-26
•
Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 Mackta Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:17
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/66; H05G1/64
Claims Analysis
Total Claims: 0
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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) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |