US3593376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making multiple-image electrotype molds
Assignee: J W CLEMENT CO
•
Filing: 1968-04-04
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Granted: 1971-07-20
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Expires: 1988-04-04
Abstract
Abstract A method and apparatus for preparing multi-image matrices for printing plates from photoengravings or the like in the blackwhite and multicolor printing industries; featuring use of a thermoplastic mold sheet impressed successively at adjacent areas thereof against a single engraving, to produce a multi-image mold. The apparatus includes mold register guide-forming means functioning automatically to precisely register the mold sheet as it is shifted from one impression operation to another. Also, the apparatus features means for insulating each previously made image impression against resoftening and/or deformation incidental to subsequent processing of the mold sheet in the mold press.
Inventors
- 👤 Laurence J Kisker
- 👤 William G Mathewson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:13
CPC Classifications
G; G03; G03F; G03F9/00; B; B41; B41C; B41C3/00; B41C3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
An apparatus as set forth in claim 1 wherein said heat-insulating pad is disposed in top surface flush relation with said pressplate portion of said jig so as to continuously flatwise support said mold sheet as it is shifted relative to said pressplate portion of said jig.
Claim 2
Dependent Claim
34 words
An apparatus as set forth in claim 2 including a resilient blanket member backing said mold sheet relative to said engraving and said guide-pocket-forming means incidental to each image impression operation of the press.
References Cited (Backward Citations)
US2390803A
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US2680882A
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US2694227A
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US2926385A
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US2849752A
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US3194047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |