Patent US4573462A successfully refreshed from Google Patents.
Patent US2730566A successfully refreshed from Google Patents.
US2730566A
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Method and apparatus for x-ray fluoroscopy
Assignee: BARTOW BEACONS Inc
•
Filing: 1949-12-27
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Granted: 1956-01-10
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Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 John B Bartow
- 👤 Jr Grey D Maclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; 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) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |