US3023700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electrotype plates
Assignee: Bista Inc
•
Filing: 1958-05-05
•
Granted: 1962-03-06
•
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 19:42
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.
References Cited (Backward Citations)
US130140A
Cited
US1806861A
Cited
US1177240A
Cited
US1365267A
Cited
US1487178A
Cited
US1803548A
Cited
US2045471A
Cited
US2280865A
Cited
US2363431A
Cited
US2590221A
Cited
US2507347A
Cited
US2575734A
Cited
US2581718A
Cited
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 |