Patent USRE23034E successfully refreshed from Google Patents.
US3136889A
Expired / Lapsed
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Apparatus for determining gamma or X-ray dosage
Assignee: Bausch and Lomb Inc
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Filing: 1961-12-06
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Granted: 1964-06-09
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Expires: 1981-12-06
Abstract
No abstract record available.
Inventors
- 👤 Winston B Clarke
- 👤 Robert J Meltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:54
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/10; G01T1/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
APPARATUS FOR DETERMINING THE DOSAGE OF IONIZING RADIATION TO WHICH A BODY HAS BEEN EXPOSED, COMPRISING A LIGHT SOURCE ADAPTED TO DIRECT LIGHT RAYS ONTO SAID BODY, MEANS TO MODULATE THE INTENSITY OF THE LIGHT SOURCE AT A RELATIVELY HIGH FREQUENCY TO THEREBY EXCITE SAID BODY TO A FLUORESCENT STATE, MEANS TO SEPARATE THE POST DOSE FLUORESCENCE AND THE PRE-DOSE FLUORESCENCE AND MEANS TO MEASURE THE INTENSITY OF THE POST DOSE FLUORESCENCE.
Claim 2
Dependent Claim
72 words
APPARATUS FOR DETERMINING THE DOSAGE OF IONIZING RADIATION TO WHICH A BODY HAS BEEN EXPOSED, COMPRISING A LIGHT SOURCE ADAPTED TO DIRECT LIGHT RAYS ONTO SAID BODY, MEANS TO MODULATE THE INTENSITY OF THE LIGHT SOURCE AT A RELATIVELY HIGH FREQUENCY TO THEREBY EXCITE SAID BODY TO A FLUORESCENT STATE, MEANS TO SEPARATE THE POST DOSE FLUORESCENCE AND THE PRE-DOSE FLUORESCENCE AND MEANS TO MEASURE THE INTENSITY OF THE POST DOSE FLUORESCENCE.
References Cited (Backward Citations)
US2934651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |