Patent US2882415A successfully refreshed from Google Patents.
US2882415A
Expired / Lapsed
US
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Radiation dosimeter color standard
Assignee: Callery Chemical Co
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Filing: 1953-10-28
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Granted: 1959-04-14
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Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jean P Pressau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:34
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A COLOR STANDARD ADAPTED TO BE VIEWED BY REFLECTED LIGHT FOR A RADIATION DOSIMETER HAVING AN ALKALI HALIDE ELEMENT SENSITIZED TO RADIATION COMPRISING A SHAPE OF MATERIAL OF THE GROUP CONSISTING OF CLEAR TRANSPARENT RESIN AND GLASS SUBSTANTIALLY INSENSITIVE TO RADIATION, AND A COATING ON ALL BUT TH EVIEWING SURFACE OF SAID SHAPE OF A FILM-FORMING COMPOSITION HAVING AS ITS ONLY APPRECIABLE ABSORPTION BAND IN THE VISIBLE SPECTRUM A STRONG ABSORPTION MAXIMUM CORRESPONDING TO THE COLOR SHOWN BY SAID SENSITIVE ELEMENT AFTER EXPOSURE TO A PREDETERMINED AMOUNT OF RADIATION.
References Cited (Backward Citations)
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US2490263A
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US2680816A
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US2673934A
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US2721809A
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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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |