Patent US3771440A successfully refreshed from Google Patents.
US3771440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing a printing plate for accurate registration
Assignee: Individual
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Filing: 1972-02-29
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Granted: 1973-11-13
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Expires: 1992-02-29
Abstract
Abstract The invention disclosed is a method for preparing a printing plate for accurate registration onto a press. Registration areas are first provided in proper alignment relative to the printing area of the plate being processed. Next, means are provided for positioning the registration areas in fixed location for shearing of the plate along the width and length edges thereof. Shearing of the length, along opposite ends of the plate, is accompanied by punching saddle engaging slots, and binding. The plate so processed is ready for accurate introduction directly onto a printing press where the ends are conveniently secured in place about a saddle.
Inventors
- 👤 W Eburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:59
CPC Classifications
G; G03; G03F; G03F9/00; Y; Y10; Y10S; Y10S101/00; Y10S101/36; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A method for preparing a printing plate for accurate registration onto a press, said method consisting essentially of providing registration areas in non-printing portions of a printing plate having a thin metal support layer, positioning the printing plate using the registration areas in fixed location and maintaining the plate in fixed position while shearing the plate along a width measurement thereof, shearing the plate and punching saddle engaging slots along opposite ends of a length measurement thereof, and bending edges while simultaneously punching saddle engaging slots, said bending and punching being accompanied by simultaneous stretching in the length direction to insure against spring return of the bended edges to original position.
Claim 2
Independent Claim
111 words
A method for preparing a printing plate for accurate registration onto a press, said method consisting essentially of providing registration areas in non-printing portions of a printing plate having a thin metal support layer, positioning the printing plate using the registration areas in fixed location and maintaining the plate in fixed position while shearing the plate along a width measurement thereof, shearing the plate and punching saddle engaging slots along opposite ends of a length measurement thereof, and bending edges while simultaneously punching saddle engaging slots, said bending and punching being accompanied by simultaneous stretching in the length direction to insure against spring return of the bended edges to original position.
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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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |