Patent US1973163A successfully refreshed from Google Patents.
US3207899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray phototimer detectors
Assignee: Individual
•
Filing: 1962-05-07
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Granted: 1965-09-21
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Le Roy J Leishman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:28
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/38; H05G1/42; H05G1/44; G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2006; G03; G03B; G03B42/00; G03B42/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN AN X-RAY PHOTO-TIMER PICK-UP DEVICE FOR USE BETWEEN THE PATIENT AN AN X-RAY FILM, A COMBINATION INCLUDING: A PHOTO TUBE; AN X-RAY TRANSPARENT SHEET BEARING A PHOSPHOR THAT WILL FLUORESCE UNDER THE INFLUENCE OF X-RAYS; A PLATE OF MATERIAL CAPABLE FOR TRANSMITTING RAYS FROM SAID SHEET; A COVERING AROUND THE GREATER PORTION OF SAID PLATE, SAID COVERING HAVING REFLECTIVE PROPERTIES AT LEAST ON THE SURFACE CONTACTING SAID PLATE, SAID COVERING HAVING A FIRST OPENING THEREIN TO PASS LIGHT FROM A PORTION OF SAID SHEET TO SAID PLATE, AND A SECOND OPENING THEREIN TO PASS LIGHT FROM SAID PLATE TO SAID TUBE.
Claim 2
Dependent Claim
102 words
IN AN X-RAY PHOTO-TIMER PICK-UP DEVICE FOR USE BETWEEN THE PATIENT AN AN X-RAY FILM, A COMBINATION INCLUDING: A PHOTO TUBE; AN X-RAY TRANSPARENT SHEET BEARING A PHOSPHOR THAT WILL FLUORESCE UNDER THE INFLUENCE OF X-RAYS; A PLATE OF MATERIAL CAPABLE FOR TRANSMITTING RAYS FROM SAID SHEET; A COVERING AROUND THE GREATER PORTION OF SAID PLATE, SAID COVERING HAVING REFLECTIVE PROPERTIES AT LEAST ON THE SURFACE CONTACTING SAID PLATE, SAID COVERING HAVING A FIRST OPENING THEREIN TO PASS LIGHT FROM A PORTION OF SAID SHEET TO SAID PLATE, AND A SECOND OPENING THEREIN TO PASS LIGHT FROM SAID PLATE TO SAID TUBE.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |