Patent US3023700A successfully refreshed from Google Patents.
US3023700A
Expired / Lapsed
US
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Method of making electrotype plates
Assignee: Bista Inc
•
Filing: 1958-05-05
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Granted: 1962-03-06
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Homer L Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:53
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD FOR MOLDING A THERMOPLASTIC BACKING LAYER TO AN ELECTROTYPE PRINTING SHELL INCLUDING THE STEPS OF HEATING THE BACKING LAYER TO SOFTEN SAME, SUPERIMPOSING THE BACKING LAYER AND THE PRINTING SHELL, PLACING THE ELECTROTYPE SHELL ON A SMOOTH AND RIGID SUPPORTING SURFACE, COVERING THE ELECTROTYPE SHELL AND THE SOFTENED BACKING LAYER THEREON WITH A RESILIENT MEMBRANE HAVING AN AREA EXCEEDING THE AREA OF SAID BACKING LAYER WHEREBY PORTIONS OF SAID MEMBRANE ENGAGE SAID SUPPORTING SURFACE, AND APPLYING HYDROSTATIC PRESSURE TO SAID MEMBRANE TO COMPRESS SAID BACKING LAYER AND SAID ELECTROTYPE SHELL BETWEEN THE MEMBRANE AND SAID SUPPORTING SURFACE, SAID MEMBRANE COOPERATING WITH SAID SUPPORTING SURFACE TO CONFINE SAID PLASTIC LAYER SUBSTANTIALLY TO ITS ORIGINAL SURFACE AREA.
Claim 2
Independent Claim
117 words
A METHOD FOR MOLDING A THERMOPLASTIC BACKING LAYER TO AN ELECTROTYPE PRINTING SHELL INCLUDING THE STEPS OF HEATING THE BACKING LAYER TO SOFTEN SAME, SUPERIMPOSING THE BACKING LAYER AND THE PRINTING SHELL, PLACING THE ELECTROTYPE SHELL ON A SMOOTH AND RIGID SUPPORTING SURFACE, COVERING THE ELECTROTYPE SHELL AND THE SOFTENED BACKING LAYER THEREON WITH A RESILIENT MEMBRANE HAVING AN AREA EXCEEDING THE AREA OF SAID BACKING LAYER WHEREBY PORTIONS OF SAID MEMBRANE ENGAGE SAID SUPPORTING SURFACE, AND APPLYING HYDROSTATIC PRESSURE TO SAID MEMBRANE TO COMPRESS SAID BACKING LAYER AND SAID ELECTROTYPE SHELL BETWEEN THE MEMBRANE AND SAID SUPPORTING SURFACE, SAID MEMBRANE COOPERATING WITH SAID SUPPORTING SURFACE TO CONFINE SAID PLASTIC LAYER SUBSTANTIALLY TO ITS ORIGINAL SURFACE AREA.
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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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |