US3725703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray film cassette
Assignee: Individual
•
Filing: 1971-06-09
•
Granted: 1973-04-03
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Expires: 1991-06-09
Abstract
Abstract A cassette for holding a plurality of X-ray film packs. The film packs are held in overlapping positions so that the edges of adjacent internal films are aligned to make up a large overall continuous area. Lead markings on the cassette cause mating symbols to be imaged on adjacent films; the final photographs can thus be pieced together easily to form the composite larger picture.
Inventors
- 👤 P Bucky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:19
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B17/00; G03B17/28; G03B17/32; G03B17/34
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
92 words
An X-ray film cassette comprising means for positioning individual X-ray film packs therein with the edges in overlapping relationships such that the films within the film packs are lined up relative to each other to form a continuous large film area substantially equal to the sum of the areas of the individual film packs, the cassette being transparent to X-rays in the direction in which X-rays are directed toward said films and including paired markings which block X-rays such that paired markings are exposed on pairs of continguous films within the cassette.
Claim 2
Dependent Claim
92 words
An X-ray film cassette comprising means for positioning individual X-ray film packs therein with the edges in overlapping relationships such that the films within the film packs are lined up relative to each other to form a continuous large film area substantially equal to the sum of the areas of the individual film packs, the cassette being transparent to X-rays in the direction in which X-rays are directed toward said films and including paired markings which block X-rays such that paired markings are exposed on pairs of continguous films within the cassette.
Claim 3
Dependent Claim
28 words
An X-ray film cassette in accordance with claim 1 wherein all of the markings which are imaged on different pairs of continguous films are different from each other.
Claim 4
Dependent Claim
24 words
An X-ray film cassette in accordance with claim 2 wherein within the cassette said film packs are maintained in at least four different planes.
Claim 5
Dependent Claim
24 words
An X-ray film cassette in accordance with claim 1 wherein within the cassette said film packs are maintained in at least four different planes.
Claim 6
Dependent Claim
45 words
An X-ray film cassette in accordance with claim 4 wherein said positioning means positions said film packs such that the edges of films in adjacent film packs are aligned with each other and said markings are imaged along the edges of pairs of contiguous films.
Claim 7
Dependent Claim
45 words
An X-ray film cassette in accordance with claim 2 wherein said positioning means positions said film packs such that the edges of films in adjacent film packs are aligned with each other and said markings are imaged along the edges of pairs of contiguous films.
References Cited (Backward Citations)
US3294610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |