US3356847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray film exposure measuring system having means for terminating the exposure
Assignee: Picker X Ray Corp
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Filing: 1965-07-28
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Granted: 1967-12-05
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Expires: 1985-07-28
Abstract
No abstract record available.
Inventors
- 👤 Walter E Splain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:28
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/38; H05G1/42; H05G1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN AN X-RAY APPARATUS FOR PROVIDING X-RAYS FROM AN X-RAY SOURCE TO A SUBJECT TO BE X-RAYED AND TO A FILM POSITIONED BEHIND THE SUBJECT, A SYSTEM FOR PROPERLY EXPOSING THE FILM, SAID SYSTEM COMPRISING: (A) SUPPLY CIRCUIT MEANS CONNECTING THE X-RAY SOURCE TO AN ENERGIZING SUPPLY; (B) X-RAY RESPONSIVE MEANS DISPOSED ADJACENT THE FILM AND PROVIDING AN OUTPUT INDICATION OF THE QUANTITY OF X-RAYS IMPINGING THE FILM; (C) INTEGRATING CIRCUIT MEANS CONNECTED TO THE X-RAY RESPONSIVE MEANS AND INTEGRATING SAID OUTPUT; (D) DIGITIZING CIRCUIT MEANS CONNECTED TO SAID INTEGRATING CIRCUIT MEANS AND FORMING A SUCCESSIVE TRAIN OF PULSES FROM THE INTEGRATED OUTPUT; (E) PULSE RESPONSIVE MEANS CONNECTED TO SAID DIGITIZING
Claim 2
Dependent Claim
111 words
IN AN X-RAY APPARATUS FOR PROVIDING X-RAYS FROM AN X-RAY SOURCE TO A SUBJECT TO BE X-RAYED AND TO A FILM POSITIONED BEHIND THE SUBJECT, A SYSTEM FOR PROPERLY EXPOSING THE FILM, SAID SYSTEM COMPRISING: (A) SUPPLY CIRCUIT MEANS CONNECTING THE X-RAY SOURCE TO AN ENERGIZING SUPPLY; (B) X-RAY RESPONSIVE MEANS DISPOSED ADJACENT THE FILM AND PROVIDING AN OUTPUT INDICATION OF THE QUANTITY OF X-RAYS IMPINGING THE FILM; (C) INTEGRATING CIRCUIT MEANS CONNECTED TO THE X-RAY RESPONSIVE MEANS AND INTEGRATING SAID OUTPUT; (D) DIGITIZING CIRCUIT MEANS CONNECTED TO SAID INTEGRATING CIRCUIT MEANS AND FORMING A SUCCESSIVE TRAIN OF PULSES FROM THE INTEGRATED OUTPUT; (E) PULSE RESPONSIVE MEANS CONNECTED TO SAID DIGITIZING
References Cited (Backward Citations)
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Cited
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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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |