US2883554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control means for regulating the output of x-ray apparatus
Assignee: LAND AIR Inc
•
Filing: 1953-06-04
•
Granted: 1959-04-21
•
Expires: 1973-06-04
Abstract
No abstract record available.
Inventors
- 👤 Earl V Reed
- 👤 Harold B Vahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/46; Y; Y10; Y10S; Y10S164/00; Y10S164/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2353979A
Cited
US2572258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |