US3158077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for reproducing designs
Assignee: WEST PENN SCREEN SERVICE Inc
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Filing: 1963-05-28
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Granted: 1964-11-24
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Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Henry L Miller
- 👤 Thomas R Ramsden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:02
CPC Classifications
G; G03; G03F; G03F1/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF PRODUCING A STENCIL SCREEN FOR THE TRANSFER OF A DESIGN ONTO A CONICAL SURFACE AND AT A FIXED RADIUS COMPRISING THE STEPS OF PREPARING A RADIUS NEGATIVE OF SAID DESIGN WHOSE RADIUS IS OF A PREDETERMINED DIMENSION; PRODUCING A STRAIGHT-LINE POSITIVE OF SAID DESIGN BY PHOTOGRAPHICALLY DISTORTING SAID RADIUS NEGATIVE, SAID STRAIGHT-LINE POSITIVE HAVING A CORRESPONDING RADIUS EQUAL TO SAID PREDETERMINED DIMENSION; REPRODUCING SAID STRAIGHT-LINE POSITIVE PHOTOGRAPHICALLY TO PRODUCE A SECOND STRAIGHT-LINE POSITIVE BEARING SAID DESIGN AND HAVING A CORRESPONDING RADIUS EQUAL TO SAID FIXED RADIUS, AND EMPLOYING A SENSITIZED STENCIL SCREEN FOR CONTACT PRINTING SAID SECOND STRAIGHT-LINE POSITIVE TO PRODUCE A STENCIL SCREEN BEARING A NEGATIVE OF SAID DESIGN IN STRAIGHT-LINE FORM HAVING A CORRESPONDING RADIUS EQUAL TO SAID FIXED RADIUS.
Claim 2
Independent Claim
125 words
THE METHOD OF PRODUCING A STENCIL SCREEN FOR THE TRANSFER OF A DESIGN ONTO A CONICAL SURFACE AND AT A FIXED RADIUS COMPRISING THE STEPS OF PREPARING A RADIUS NEGATIVE OF SAID DESIGN WHOSE RADIUS IS OF A PREDETERMINED DIMENSION; PRODUCING A STRAIGHT-LINE POSITIVE OF SAID DESIGN BY PHOTOGRAPHICALLY DISTORTING SAID RADIUS NEGATIVE, SAID STRAIGHT-LINE POSITIVE HAVING A CORRESPONDING RADIUS EQUAL TO SAID PREDETERMINED DIMENSION; REPRODUCING SAID STRAIGHT-LINE POSITIVE PHOTOGRAPHICALLY TO PRODUCE A SECOND STRAIGHT-LINE POSITIVE BEARING SAID DESIGN AND HAVING A CORRESPONDING RADIUS EQUAL TO SAID FIXED RADIUS, AND EMPLOYING A SENSITIZED STENCIL SCREEN FOR CONTACT PRINTING SAID SECOND STRAIGHT-LINE POSITIVE TO PRODUCE A STENCIL SCREEN BEARING A NEGATIVE OF SAID DESIGN IN STRAIGHT-LINE FORM HAVING A CORRESPONDING RADIUS EQUAL TO SAID FIXED RADIUS.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |