US3283071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of examining x-rays
Assignee: Motorola Solutions Inc
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Filing: 1963-06-04
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Granted: 1966-11-01
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Rose
- 👤 Frank E Bullard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:02
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/30; H04N5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A METHOD OF CONDUCTING AN X-RAY EXAMINATION OF A SUBJECT DURING WHICH A CONTRAST MEDIUM IS INJECTED INTO THE SUBJECT, SAID METHOD INCLUDING THE STEPS OF: (A) TAKING A FIRST X-RAY PHOTOGRAPH OF THE SUBJECT PRIOR TO THE INJECTION OF THE CONTRAST MEDIUM, (B) TAKING A SIMILAR SECOND X-RAY PHOTOGRAPH OF THE SUBJECT AFTER THE INJECTION OF THE CONTRAST MEDIUM, (C) POSITIONING SAID FIRST X-RAY PHOTOGRAPH BEFORE A FIRST TELEVISION CAMERA AND SAID SECOND X-RAY PHOTOGRAPH BEFORE A SECOND TELEVISION CAMERA, (D) CONVERTING SAID FIRST X-RAY PHOTOGRAPH INTO A FIRST ELECTRICAL SIGNAL BY MEANS OF SAID FIRST TELEVISION CAMERA AND CONVERTING SAID SECOND X-RAY PHOTOGRAPH INTO A SECOND ELECTRICAL SIGNAL BY MEANS OF SAID SECOND TELEVISION CAMERA, (E) REVERSING THE POLARITY OF ONE OF SAID FIRST AND SECOND ELECTRICAL SIGNALS TO FORM A NEGATIVE PICTURE, (F) COMBINING SAID ONE REVERSED POLARITY ELECTRICAL SIGNAL AND THE OTHER ELECTRICAL SIGNAL TO FORM A COMPOSITE ELECTRICAL SIGNAL, (G) PROVIDING A TELEVISION REPRODUCTION OF SAID COMPOSITE ELECTRICAL SIGNAL, AND (H) POSITIONING ONE OF SAID FIRST AND SECOND X-RAY PHOTOGRAPHS SO THAT AND SECOND X-RAY PHOTOGRAPHS REPRESENTS SAID FIRST AND SECOND X-RAY PHOTOGRAPHS EXACTLY SUPERIMPOSED.
Claim 2
Independent Claim
190 words
A METHOD OF CONDUCTING AN X-RAY EXAMINATION OF A SUBJECT DURING WHICH A CONTRAST MEDIUM IS INJECTED INTO THE SUBJECT, SAID METHOD INCLUDING THE STEPS OF: (A) TAKING A FIRST X-RAY PHOTOGRAPH OF THE SUBJECT PRIOR TO THE INJECTION OF THE CONTRAST MEDIUM, (B) TAKING A SIMILAR SECOND X-RAY PHOTOGRAPH OF THE SUBJECT AFTER THE INJECTION OF THE CONTRAST MEDIUM, (C) POSITIONING SAID FIRST X-RAY PHOTOGRAPH BEFORE A FIRST TELEVISION CAMERA AND SAID SECOND X-RAY PHOTOGRAPH BEFORE A SECOND TELEVISION CAMERA, (D) CONVERTING SAID FIRST X-RAY PHOTOGRAPH INTO A FIRST ELECTRICAL SIGNAL BY MEANS OF SAID FIRST TELEVISION CAMERA AND CONVERTING SAID SECOND X-RAY PHOTOGRAPH INTO A SECOND ELECTRICAL SIGNAL BY MEANS OF SAID SECOND TELEVISION CAMERA, (E) REVERSING THE POLARITY OF ONE OF SAID FIRST AND SECOND ELECTRICAL SIGNALS TO FORM A NEGATIVE PICTURE, (F) COMBINING SAID ONE REVERSED POLARITY ELECTRICAL SIGNAL AND THE OTHER ELECTRICAL SIGNAL TO FORM A COMPOSITE ELECTRICAL SIGNAL, (G) PROVIDING A TELEVISION REPRODUCTION OF SAID COMPOSITE ELECTRICAL SIGNAL, AND (H) POSITIONING ONE OF SAID FIRST AND SECOND X-RAY PHOTOGRAPHS SO THAT AND SECOND X-RAY PHOTOGRAPHS REPRESENTS SAID FIRST AND SECOND X-RAY PHOTOGRAPHS EXACTLY SUPERIMPOSED.
References Cited (Backward Citations)
US2933008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |