Patent US2279133A successfully refreshed from Google Patents.
Patent US4122470A successfully refreshed from Google Patents.
US4122470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinged multiple exposure matbox attachment for cameras
Assignee: Individual
•
Filing: 1976-04-28
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Granted: 1978-10-24
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Expires: 1996-04-28
Abstract
Abstract An attachment for use on a camera to make it possible to make photo montages by taking separate pictures on different areas of the same film, embodying a matbox comprising a box to be secured to the camera lens having hinged blinds to selectively mask portions of film in the camera so that the masked portion of the film will remain unexposed until, by operation of the blinds, the formerly masked portions are selected, and further pictures may be taken without reference to the first picture which is masked.
Inventors
- 👤 Robert C. Loranger
- 👤 Marvin E. Sackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:19
CPC Classifications
G; G03; G03B; G03B11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
209 words
An attachment for a camera for making plural photographs on a single exposure film roll element in a camera by taking multiple exposures comprising a cylindrical socket element of a dimension suitable to overlie and snugly engage a lens mount on the exterior of the camera, a substantially rectangular box, a tapering portion connecting said socket to said box comprising four sides which connect to said tapering portion and have an open front face and rear face whereby said tapering portion connects to said rear face along its outer periphery, and a plurality of mask elements disposed on hinges about at least a portion of an outer periphery of said open front face so that when at least one mask element is disposed along the open front face of said box, a portion of the picture then taken will be similarly masked and unexposed, said masks comprised of sufficient dimension such that when all masks are disposed over the front face the front face is completely shielded and when the mask elements are not disposed over the front face they can be moved to overlie the outer portion of the sides of said box so as to provide a ready externally visible indication of which masks are being utilized.
Claim 2
Dependent Claim
209 words
An attachment for a camera for making plural photographs on a single exposure film roll element in a camera by taking multiple exposures comprising a cylindrical socket element of a dimension suitable to overlie and snugly engage a lens mount on the exterior of the camera, a substantially rectangular box, a tapering portion connecting said socket to said box comprising four sides which connect to said tapering portion and have an open front face and rear face whereby said tapering portion connects to said rear face along its outer periphery, and a plurality of mask elements disposed on hinges about at least a portion of an outer periphery of said open front face so that when at least one mask element is disposed along the open front face of said box, a portion of the picture then taken will be similarly masked and unexposed, said masks comprised of sufficient dimension such that when all masks are disposed over the front face the front face is completely shielded and when the mask elements are not disposed over the front face they can be moved to overlie the outer portion of the sides of said box so as to provide a ready externally visible indication of which masks are being utilized.
Claim 3
Dependent Claim
49 words
The attachment for a camera as recited in claim 1 in which four masks are provided, each pivoted to a different side of said box whereby four separate pictures may be made successively on a single film, or more than one said mask may be deployed at anyone time.
Claim 4
Dependent Claim
53 words
The attachment for a camera as recited in claim 1 in which four masks are provided and two of said masks are pivoted to one side of said box and the other two being pivoted to the opposite side of said box, so that one or more of said blinds can be deployed.
Claim 5
Dependent Claim
56 words
The attachment for a camera as recited in claim 1 in which a plurality of masks are pivoted some to one side of said box, and the remainder pivoted to the opposite side of said box, the masks pivoted to each side of said box being together sufficient, when closed, to mask half of said film.
Claim 6
Dependent Claim
83 words
The attachment for a camera as recited in claim 1 in which the mask pivoted to one side of said box masks more than one half of the area of the film in the camera when in position overlying said box and the mask pivoted to the other side of the box masks the remainder of the area of the film when positioned to overlie said box, whereby two pictures may be taken having areas proportioned to the proportions of said two masks.
References Cited (Backward Citations)
US1103745A
Cited
US1368761A
Cited
US1510410A
Cited
US1575990A
Cited
US1715593A
Cited
US2186610A
Cited
US3135184A
Cited
US3719128A
Cited
US3940775A
Cited
US3959803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |