Patent US2454992A successfully refreshed from Google Patents.
Patent US3777141A successfully refreshed from Google Patents.
US3777141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for securing a film for dental x-ray to a right-angled film holder and aiming rod by means of a ray-permeable bite block with film support and an antagonist bite plate
Assignee: Individual
•
Filing: 1972-07-10
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Granted: 1973-12-04
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Expires: 1992-07-10
Abstract
Abstract A device for securing a film for dental X-ray in a right angle to a film holder and aiming rod.
Inventors
- 👤 S Eggen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:48
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/042
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
145 words
A dental X-ray film holder comprising a flat strip-like aiming rod which is bent at a right angle at one end, orifices in said rod adjacent the right angle bend, an X-ray permeable bite block having studs on one side face adapted to be passed through the said orifices in the rod, a film support extending from one end of the bite block, substantially at a right angle away from the rod and parallel with and adjacent the said right angle bend of the rod thereby forming a film receiving slot between them when the bite block is mounted on the rod with the said studs passed through the said orifices, a bite plate being provided with orifices for receivng the said studs extending through the said orifices in the rod, whereby the bite block and the bite plate are locked to the aiming rod.
Claim 2
Dependent Claim
145 words
A dental X-ray film holder comprising a flat strip-like aiming rod which is bent at a right angle at one end, orifices in said rod adjacent the right angle bend, an X-ray permeable bite block having studs on one side face adapted to be passed through the said orifices in the rod, a film support extending from one end of the bite block, substantially at a right angle away from the rod and parallel with and adjacent the said right angle bend of the rod thereby forming a film receiving slot between them when the bite block is mounted on the rod with the said studs passed through the said orifices, a bite plate being provided with orifices for receivng the said studs extending through the said orifices in the rod, whereby the bite block and the bite plate are locked to the aiming rod.
Claim 3
Dependent Claim
41 words
Device according to claim 1, characterized in that the studs of the bite block are provided with a locking wreath and that the orifices in the bite plate have a step or a locking collar for cooperation with the locking wreath.
Claim 4
Dependent Claim
21 words
Device according to claim 1, characterized in that the bite block is secured to the bite plate by means of hinges.
Claim 5
Dependent Claim
105 words
A disposable dental X-ray film holding device which includes a support rod, an X-ray permeable bite block having studs on one side face, means on said rod for allowing said studs to pass therethrough to thereby mount the bite block on said rod, a film support extending from one end of the bite block and adapted tO provide a film receiving slot with one end of the support rod when mounted thereon, and a mating bite plate hingedly connected to said bite block and provided with orifices adapted to receive said studs for mounting said bite block in a predetermined position on said support rod.
Claim 6
Dependent Claim
105 words
A disposable dental X-ray film holding device which includes a support rod, an X-ray permeable bite block having studs on one side face, means on said rod for allowing said studs to pass therethrough to thereby mount the bite block on said rod, a film support extending from one end of the bite block and adapted tO provide a film receiving slot with one end of the support rod when mounted thereon, and a mating bite plate hingedly connected to said bite block and provided with orifices adapted to receive said studs for mounting said bite block in a predetermined position on said support rod.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |