Patent US3030509A successfully refreshed from Google Patents.
US3030509A
Expired / Lapsed
US
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Standardized luminophore
Assignee: Harshaw Chemical Co
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Filing: 1959-09-04
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Granted: 1962-04-17
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Roland W Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:26
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22; C09K; C09K11/00; C09K11/04; G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PACKAGED STANDARDIZED LUMINOPHORE COMPRISING A PRIMARY LUMINOPHORE HAVING A CAVITY THEREIN, A REFERENCE LUMINOPHORE HAVING AN ALPHA PARTICLE EMITTING RADIOACTIVE MATERIAL DISPERSED THEREIN, SAID REFERENCE LUMINOPHORE BEING SECURED WITHIN SAID CAVITY BY MEANS OF A CONTINUOUS EPOXY RESIN COUPLING MATERIAL, AND A METAL HOUSING MEMBER HAVING A GLASS WINDOW ON ONE FACE THEREOF AND A REFLECTIVE COATING ON ALL INTERIOR METAL SURFACES, SAID COUPLED PRIMARY LUMINOPHORE AND REFERENCE LUMINOPHORE BEING DISPOSED WITHIN SAID HOUSING IN A MANNER SUCH THAT SAID REFERENCE LUMINOPHORE IS POSITIONED AT A POINT OPPOSITE SAID GLASS WINDOW.
Claim 2
Dependent Claim
92 words
A PACKAGED STANDARDIZED LUMINOPHORE COMPRISING A PRIMARY LUMINOPHORE HAVING A CAVITY THEREIN, A REFERENCE LUMINOPHORE HAVING AN ALPHA PARTICLE EMITTING RADIOACTIVE MATERIAL DISPERSED THEREIN, SAID REFERENCE LUMINOPHORE BEING SECURED WITHIN SAID CAVITY BY MEANS OF A CONTINUOUS EPOXY RESIN COUPLING MATERIAL, AND A METAL HOUSING MEMBER HAVING A GLASS WINDOW ON ONE FACE THEREOF AND A REFLECTIVE COATING ON ALL INTERIOR METAL SURFACES, SAID COUPLED PRIMARY LUMINOPHORE AND REFERENCE LUMINOPHORE BEING DISPOSED WITHIN SAID HOUSING IN A MANNER SUCH THAT SAID REFERENCE LUMINOPHORE IS POSITIONED AT A POINT OPPOSITE SAID GLASS WINDOW.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |