Patent US2666144A successfully refreshed from Google Patents.
US2666144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroradiography
Assignee: Battelle Development Corp
•
Filing: 1950-02-02
•
Granted: 1954-01-12
•
Expires: 1970-02-02
Abstract
No abstract record available.
Inventors
- 👤 Roland M Schaffert
- 👤 Robert C Mcmaster
- 👤 William E Bixby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26; G03G13/00; G03G13/054; G03G15/06; G03G15/08; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207; Y; Y10; Y10S; Y10S430/00; Y10S430/144; Y10S430/167; Y10S430/168
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF ELECTRORADIOGRAPHY COMPRISING THE STEPS OF CHARGING THE SURFACE OF A PLATE HAVING A SEMINCONDUCTIVE SELENIUM COATING, EXPOSING THE CHARGED PLATE TO X-RAY RADIATION WHILE AN OBJECT TO BE TESTED IS POSITIONED BETWEEN THE XRAV SOURCE AND THE CHARGED SELENIUM PLATE, DUST ING THE SURFACE OF SUCH EXPOSED PLATE WITH A RESINOUS MATERIAL, TRANSFERRING THE IMAGE THUS PRODUCED TO A SECOND SURFACE, AND FIXING SUCH TRANSFERRED IMAGE TO SAID SECOND SURFACE.
Claim 2
Independent Claim
73 words
THE METHOD OF ELECTRORADIOGRAPHY COMPRISING THE STEPS OF CHARGING THE SURFACE OF A PLATE HAVING A SEMINCONDUCTIVE SELENIUM COATING, EXPOSING THE CHARGED PLATE TO X-RAY RADIATION WHILE AN OBJECT TO BE TESTED IS POSITIONED BETWEEN THE XRAV SOURCE AND THE CHARGED SELENIUM PLATE, DUST ING THE SURFACE OF SUCH EXPOSED PLATE WITH A RESINOUS MATERIAL, TRANSFERRING THE IMAGE THUS PRODUCED TO A SECOND SURFACE, AND FIXING SUCH TRANSFERRED IMAGE TO SAID SECOND SURFACE.
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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |