Patent US784640A successfully refreshed from Google Patents.
Patent US4422759A successfully refreshed from Google Patents.
US4422759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic accessory
Assignee: Individual
•
Filing: 1981-05-04
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Granted: 1983-12-27
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Expires: 2001-05-04
Abstract
Abstract A photographic accessory, for application to a body surface and other medical and scientific uses, having dimensional graduations and color patches to facilitate correlation of photographic data with the actual size and color of the surface in question.
Inventors
- 👤 Daniel G. Holman
- 👤 Robert A. Ersek
- 👤 Arthur A. Beisang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/44; A61B5/441; A61B5/445; A61B10/00; A61B5/0059; G; G01; G01J; G01J3/00; G01J3/46; G01J3/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A photographic accessory for scientific and medical use comprising, in combination: a sheet of flexible, colorless, translucent material having a front surface with a dull finish and at least one linear edge having a scale of photographically perceptible graduations along said edge; a pressure-sensitive adhesive on the rear surface of said sheet; a plurality of opaque patches of primary Printing Manufacturing Standards colors on the front surface of said sheet; so that when said sheet is adhered to a body surface at an area to be treated and photographed, observation of the patches in the resultant photograh enables determination of the color of the area, regardless of color deviations introduced by photographic processes.
Claim 2
Dependent Claim
113 words
A photographic accessory for scientific and medical use comprising, in combination: a sheet of flexible, colorless, translucent material having a front surface with a dull finish and at least one linear edge having a scale of photographically perceptible graduations along said edge; a pressure-sensitive adhesive on the rear surface of said sheet; a plurality of opaque patches of primary Printing Manufacturing Standards colors on the front surface of said sheet; so that when said sheet is adhered to a body surface at an area to be treated and photographed, observation of the patches in the resultant photograh enables determination of the color of the area, regardless of color deviations introduced by photographic processes.
Claim 3
Dependent Claim
21 words
An accessory according to claim 1 in which said graduations are on and distinguishable from a plurality of photographically distinguishable backgrounds.
Claim 4
Dependent Claim
14 words
An accessory according to claim 1 in which one of said patches is white.
References Cited (Backward Citations)
US3162533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |