US2831765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of monochromatic and multi-coloured pictures
Assignee: VARIOFIX Ltd Pty
•
Filing: 1954-11-30
•
Granted: 1958-04-22
•
Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Kleinschmidt Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:34
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PROCESS FOR THE PRODUCTION UPON A BASE OF PICTURES WHICH ARE READILY WASHED OFF SAID BASE WITH AN ORGANIC SOLVENT TO FREE THE BASE FOR SUBSEQUENT USE IN PRODUCING NEW PICTURES THEREON WHICH COMPRISES THE STEPS OF PROVIDING A NON-POROUS PICTURE BASE, COATING SAID BASE WITH A CHLORINATED RUBBER VARNISH, SUPERIMPOSING A LIGHT-SENSITIVE EMULSION ON THE VARNISH-COATED BASE, PROJECTING A PICTURE ONTO THE EMULSION SURFACE, DEVELOPING AND FIXING THE LATENT IMAGE, WASHING THE EMULSION FROM THE UNEXPOSED PORTIONS, COVERING THE SURFACE WITH A PRIME COAT OF OIL PAINT WHICH WILL ADHERE FIRMLY TO THE UNEXPOSED PORTIONS BUT ONLY LOOSELY TO THE EXPOSED PORTIONS, AND REMOVING THE OIL PAINT PRIME COAT TOGETHER WITH THE EMULSION FROM THE EXPOSED PORTIONS BY MEANS OF AN ACID.
Claim 2
Dependent Claim
124 words
A PROCESS FOR THE PRODUCTION UPON A BASE OF PICTURES WHICH ARE READILY WASHED OFF SAID BASE WITH AN ORGANIC SOLVENT TO FREE THE BASE FOR SUBSEQUENT USE IN PRODUCING NEW PICTURES THEREON WHICH COMPRISES THE STEPS OF PROVIDING A NON-POROUS PICTURE BASE, COATING SAID BASE WITH A CHLORINATED RUBBER VARNISH, SUPERIMPOSING A LIGHT-SENSITIVE EMULSION ON THE VARNISH-COATED BASE, PROJECTING A PICTURE ONTO THE EMULSION SURFACE, DEVELOPING AND FIXING THE LATENT IMAGE, WASHING THE EMULSION FROM THE UNEXPOSED PORTIONS, COVERING THE SURFACE WITH A PRIME COAT OF OIL PAINT WHICH WILL ADHERE FIRMLY TO THE UNEXPOSED PORTIONS BUT ONLY LOOSELY TO THE EXPOSED PORTIONS, AND REMOVING THE OIL PAINT PRIME COAT TOGETHER WITH THE EMULSION FROM THE EXPOSED PORTIONS BY MEANS OF AN ACID.
References Cited (Backward Citations)
US2279567A
Cited
GB190209184A
Cited
US1187421A
Cited
US1207527A
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US2204147A
Cited
US2447836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |