Patent US3931431A successfully refreshed from Google Patents.
US3931431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographs coated with a protective and finishing layer
Assignee: Individual
•
Filing: 1974-04-18
•
Granted: 1976-01-06
•
Expires: 1994-04-18
Abstract
Abstract Compositions to be applied to professional studio photographs on color paper or black and white emulsions for protective and finishing purposes comprising a vinyl resin in particulate form dispersed in methyl isobutyl ketone to which is added a blend of aromatic hydrocarbons such as naphtha and xylene, with or without a thinning or flattening agent, and a plasticizer. The compositions are also useful for preventing color changes and for making color corrections. They overcome the yellowing and other disadvantages of conventional lacquers such drying hard and cracking the photographic print.
Inventors
- 👤 Lewis A. Giorgi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:28
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/06; G03C11/08; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/162; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
A finishing composition brushed or sprayed onto contoured colored studio photographs to form a colorless transparent protective coating thereon which when dry retains flexiblity and elasticity characteristics independent of time, humidity and atmospheric conditions, said composition being composed essentially of commercial particulate vinyl resin dissolved or dispersed in methyl isobutyl ketone, diisobutyl ketone or trimethyl nonanone containing naphtha, a naphthene or a xylene and free from benzene, methanol, acetone and chlorinated hydrocarbons having solvent action on the colored studio photographs, said vinyl resin being polyvinyl chloride or a vinyl chloride copolymer wherein the vinyl chloride predominates.
Claim 2
Dependent Claim
96 words
A finishing composition brushed or sprayed onto contoured colored studio photographs to form a colorless transparent protective coating thereon which when dry retains flexiblity and elasticity characteristics independent of time, humidity and atmospheric conditions, said composition being composed essentially of commercial particulate vinyl resin dissolved or dispersed in methyl isobutyl ketone, diisobutyl ketone or trimethyl nonanone containing naphtha, a naphthene or a xylene and free from benzene, methanol, acetone and chlorinated hydrocarbons having solvent action on the colored studio photographs, said vinyl resin being polyvinyl chloride or a vinyl chloride copolymer wherein the vinyl chloride predominates.
Claim 3
Dependent Claim
18 words
A coated photograph according to claim 1 wherein the coating is composed of a plurality of superimposed layers.
Claim 4
Dependent Claim
30 words
A coated photograph according to claim 1 wherein brush texture, spray texture, matte and lustre coatings are brushed or sprayed on different areas of the photograph to effect visual effects.
Claim 5
Dependent Claim
26 words
A coated photograph according to claim 1 wherein the coating prevents fading or color changes in the underlying black and white or color contoured studio photograph.
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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |