Patent US3283153A successfully refreshed from Google Patents.
US3283153A
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US
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Radon dosimeter
Assignee: Eberline Instrument Corp
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Filing: 1963-07-02
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Granted: 1966-11-01
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Eric L Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:53
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/08; Y; Y10; Y10S; Y10S250/00; Y10S250/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A DOSIMETER FOR RADON AND RADON DAUGHTERS OF A SIZE ADAPTED TO BE WORN ON THE PERSON, COMPRISING A FLAT BASE HAVING A RECESS IN ITS CENTRAL PORTION, A MULTIPLICITY OF SMALL BORES EXTENDING OUTWARDLY FROM THE PERIPHERY OF THE RECESS IN A PLURALITY OF DIRECTIONS TO THE EXTERIOR OF THE BASE, WHEREBY CIRCULATION OF AIR INTO AND OUT OF SAID RECESS IS FACILITATED, A LIGHT-TIGHT WINDOW MOUNTED ABOVE THE RECESS, SAID WINDOW BEING OPAQUE TO VISIBLE LIGHT AND SUFFICIENTLY THIN TO PERMIT SUBSTANTIALLY UNIMPEDED PASSAGE OF ALPHA PARTICLES, AND A REMOVABLE COVER OVER THE WINDOW ON THE SIDE OPPOSITE SAID RECESS AND MOUNTED TO DEFINE A SPACE FOR A SHEET OF FILM CONTAINING AN ALPHA-SENSITIVE EMULSION CAPABLE OF PRODUCING PERMANENT VISIBLE INDICATIONS OF THE PRESENCE AND THE NUMBER OF ALPHA PARTICLES STRIKING THE FILM.
Claim 2
Dependent Claim
135 words
A DOSIMETER FOR RADON AND RADON DAUGHTERS OF A SIZE ADAPTED TO BE WORN ON THE PERSON, COMPRISING A FLAT BASE HAVING A RECESS IN ITS CENTRAL PORTION, A MULTIPLICITY OF SMALL BORES EXTENDING OUTWARDLY FROM THE PERIPHERY OF THE RECESS IN A PLURALITY OF DIRECTIONS TO THE EXTERIOR OF THE BASE, WHEREBY CIRCULATION OF AIR INTO AND OUT OF SAID RECESS IS FACILITATED, A LIGHT-TIGHT WINDOW MOUNTED ABOVE THE RECESS, SAID WINDOW BEING OPAQUE TO VISIBLE LIGHT AND SUFFICIENTLY THIN TO PERMIT SUBSTANTIALLY UNIMPEDED PASSAGE OF ALPHA PARTICLES, AND A REMOVABLE COVER OVER THE WINDOW ON THE SIDE OPPOSITE SAID RECESS AND MOUNTED TO DEFINE A SPACE FOR A SHEET OF FILM CONTAINING AN ALPHA-SENSITIVE EMULSION CAPABLE OF PRODUCING PERMANENT VISIBLE INDICATIONS OF THE PRESENCE AND THE NUMBER OF ALPHA PARTICLES STRIKING THE FILM.
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) | 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 |