US3801410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoprinting article
Assignee: GTE Sylvania Inc
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Filing: 1972-02-03
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Granted: 1974-04-02
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Expires: 1992-02-03
Abstract
Abstract A photographic master is disclosed wherein the master comprises a base of a transparent sheet, a plurality of upstanding configurations of exposed photographic emulsion material spaced in a predetermined pattern on the base, and a protective coating over the upstanding configurations and base to thereby provide a gas escapement means when the master is used to provide a pattern upon a metallic sheet in a contact printing process. An improved photoprinting process and a method for making the master are also disclosed.
Inventors
- 👤 H Detrick
- 👤 R Harshbarger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:33
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/50; G03F1/38; G03F1/48; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24909; Y10T428/24917; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31678; Y10T428/31681; Y10T428/31685; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
The photographic master according to claim 1 in which said protective coating is light sensitive and light hardenable material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |