US2690967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic stencil screen and method of making the same
Assignee: Sharples Corp
•
Filing: 1950-02-28
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Granted: 1954-10-05
•
Expires: 1970-02-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Sharples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:19
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AS AN ARTICLE OF MANUFACTURE, A PHOTOGRAPHIC STENCIL SCREEN COMPRISING AN OPEN MESH WOVEN TEXTILE FABRIC, IN AT LEAST THE OUTER PORTION OF THE STRANDS OF WHICH IS INCORPORATED A LIGHT-SENSITIVE SILVER SALT WHICH DOES NOT APPRECIABLY CLOSE THE MESH OPENINGS BETWEEN THE STRANDS, SAID FABRIC BEING IMPREGNATED WITH SOLUBLE GELATINOUS MATERIAL FREE FROM SILVER SALTS, WHICH GELATINOUS MATERIAL OVERLIES AND SURROUNDS THE SAID SILVER SALT AND FILLS THE SAID MESH OPENINGS.
Claim 2
Dependent Claim
72 words
AS AN ARTICLE OF MANUFACTURE, A PHOTOGRAPHIC STENCIL SCREEN COMPRISING AN OPEN MESH WOVEN TEXTILE FABRIC, IN AT LEAST THE OUTER PORTION OF THE STRANDS OF WHICH IS INCORPORATED A LIGHT-SENSITIVE SILVER SALT WHICH DOES NOT APPRECIABLY CLOSE THE MESH OPENINGS BETWEEN THE STRANDS, SAID FABRIC BEING IMPREGNATED WITH SOLUBLE GELATINOUS MATERIAL FREE FROM SILVER SALTS, WHICH GELATINOUS MATERIAL OVERLIES AND SURROUNDS THE SAID SILVER SALT AND FILLS THE SAID MESH OPENINGS.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |