Patent US3655972A successfully refreshed from Google Patents.
US3655972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette
Assignee: Individual
•
Filing: 1969-11-26
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Granted: 1972-04-11
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Expires: 1989-11-26
Abstract
Abstract This invention relates to a cassette for taking and identifying X-ray radiographs comprising means defining an access slot in the cassette, a film identification chamber in a portion of the cassette communicating with said slot, electroluminescent means in said chamber capable of emitting visible light upon electrical excitation, and means to provide electrical connection between the electroluminescent means and means for supplying electrical excitation.
Inventors
- 👤 James H Somerset
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:01
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/047
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
A cassette for taking and identifying X-ray radiographs comprising means defining an access slot in the cassette, a filmidentification chamber in a portion of the cassette and communicating with said slot, electroluminescent means attached in said chamber and capable of emitting visible light upon electrical excitation and having affixed on a portion thereof an identification legend, a copy of which legend is marked on X-ray film in the cassette when the cassette is used, and means in said cassette to provide electrical connection between said electroluminescent means and means tO supply electrical excitation.
Claim 2
Dependent Claim
93 words
A cassette for taking and identifying X-ray radiographs comprising means defining an access slot in the cassette, a filmidentification chamber in a portion of the cassette and communicating with said slot, electroluminescent means attached in said chamber and capable of emitting visible light upon electrical excitation and having affixed on a portion thereof an identification legend, a copy of which legend is marked on X-ray film in the cassette when the cassette is used, and means in said cassette to provide electrical connection between said electroluminescent means and means tO supply electrical excitation.
Claim 3
Dependent Claim
19 words
The cassette of claim 1 including means in said access slot to prevent light from entering into said chamber.
Claim 4
Dependent Claim
47 words
The cassette of claim 2 wherein the electroluminescent means comprises an electroluminescent screen attached to one surface of the chamber and said means to provide electrical connection comprises at least one contact plate positioned between said screen and an opening extending to the exterior of said cassette.
Claim 5
Dependent Claim
129 words
A cassette for taking and identifying X-ray radiographs comprising front, back, and side walls, an access slot in a side of the cassette at a corner thereof, a film identification chamber in said corner of the cassette and communicating with said slot, an electroluminescent screen in said chamber and attached to the front wall, a portion of said screen having affixed thereto an identification legend a copy of which legend is marked on X-ray film in the cassette when the cassette is used, at least one contact plate attached to the screen and positioned between said screen and said front wall, at least one opening extending from the exterior of the cassette to said contact plate, and means in said access slot to prevent light from entering said chamber.
Claim 6
Dependent Claim
129 words
A cassette for taking and identifying X-ray radiographs comprising front, back, and side walls, an access slot in a side of the cassette at a corner thereof, a film identification chamber in said corner of the cassette and communicating with said slot, an electroluminescent screen in said chamber and attached to the front wall, a portion of said screen having affixed thereto an identification legend a copy of which legend is marked on X-ray film in the cassette when the cassette is used, at least one contact plate attached to the screen and positioned between said screen and said front wall, at least one opening extending from the exterior of the cassette to said contact plate, and means in said access slot to prevent light from entering said chamber.
References Cited (Backward Citations)
US3488753A
Cited
US3452196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |