Patent US3005708A successfully refreshed from Google Patents.
US3005708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a screen member
Assignee: Westinghouse Electric Corp
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Filing: 1957-05-29
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Granted: 1961-10-24
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Expires: 1977-05-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Hesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:33
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271; Y; Y10; Y10S; Y10S430/00; Y10S430/153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A METHOD FOR MAKING A SCREEN MEMBER, SAID METHOD INCLUDING THE STEPS OF APPLYING A PHOTOSENSITIVE LAYER UPON A SUPPORT MEMBER, SAID SUPPORT MEMBER BEING TRANSMISSIVE TO RADIANT ENERGY OF A GIVEN WAVELENGTH, SAID LAYER HAVING A FIRST SURFACE ADJACENT SAID SUPPORT MEMBER AND A SECOND SURFACE ON THE OPPOSITE SIDE OF SAID LAYER FROM SAID FIRST SURFACE, DIRECTING RADIATIONS ONTO SAID SECOND SURFACE TO EXPOSE PORTIONS OF SAID PHOTOSENSITIVE LAYER TO A RADIANT ENERGY PATERN SO THAT A BOUNDARY IS FORMED WITHIN SAID PHOTOSENSITIVE LAYER AND WITHIN SAID EXPOSED PORTIONS, SAID PHOTOSENSITIVE LAYER BEING SUBSTANTIALLY COMPLETELY INSOLUBILIZED BETWEEN SAID BOUNDARY AND SAID SECOND SURFACE AND INCOMPLETELY INSOLUBILIZED BETWEEN SAID BOUNDARY AND SAID SUPPORT MEMBER, UNIFORMLY EXPOSING SAID FIRST SURFACE TO RADIANT ENERGY OF SAID GIVEN WAVELENGTH THROUGH SAID SUPPORT MEMBER THEREBY SUBSTANTIALLY COMPLETELY INSOLUBILIZING THE PREVIOUSLY INCOMPLETELY INSOLUBILIZED PORTION OF SAID PHOTOSENSITIVE LAYER BELOW SAID BOUNDARY ADJACENT SAID SUPPORT MEMBER AND INCOMPLETELY INSOLUBILIZING THE REMAINDER OF SAID PHOTOSENSITIVE LAYER ADJACENT SAID SUPPORT MEMBER, REMOVING THE UNEXPOSED PORTIONS OF SAID PHOTOSENSITIVE LAYER, AND REMOVING SAID INCOMPLETELY INSOLUBILIZED REMAINDER OF SAID PHOTOSENSITIVE LAYER BETWEEN SAID SUPPORT MEMBER AND SAID BOUNDARY.
Claim 2
Independent Claim
189 words
A METHOD FOR MAKING A SCREEN MEMBER, SAID METHOD INCLUDING THE STEPS OF APPLYING A PHOTOSENSITIVE LAYER UPON A SUPPORT MEMBER, SAID SUPPORT MEMBER BEING TRANSMISSIVE TO RADIANT ENERGY OF A GIVEN WAVELENGTH, SAID LAYER HAVING A FIRST SURFACE ADJACENT SAID SUPPORT MEMBER AND A SECOND SURFACE ON THE OPPOSITE SIDE OF SAID LAYER FROM SAID FIRST SURFACE, DIRECTING RADIATIONS ONTO SAID SECOND SURFACE TO EXPOSE PORTIONS OF SAID PHOTOSENSITIVE LAYER TO A RADIANT ENERGY PATERN SO THAT A BOUNDARY IS FORMED WITHIN SAID PHOTOSENSITIVE LAYER AND WITHIN SAID EXPOSED PORTIONS, SAID PHOTOSENSITIVE LAYER BEING SUBSTANTIALLY COMPLETELY INSOLUBILIZED BETWEEN SAID BOUNDARY AND SAID SECOND SURFACE AND INCOMPLETELY INSOLUBILIZED BETWEEN SAID BOUNDARY AND SAID SUPPORT MEMBER, UNIFORMLY EXPOSING SAID FIRST SURFACE TO RADIANT ENERGY OF SAID GIVEN WAVELENGTH THROUGH SAID SUPPORT MEMBER THEREBY SUBSTANTIALLY COMPLETELY INSOLUBILIZING THE PREVIOUSLY INCOMPLETELY INSOLUBILIZED PORTION OF SAID PHOTOSENSITIVE LAYER BELOW SAID BOUNDARY ADJACENT SAID SUPPORT MEMBER AND INCOMPLETELY INSOLUBILIZING THE REMAINDER OF SAID PHOTOSENSITIVE LAYER ADJACENT SAID SUPPORT MEMBER, REMOVING THE UNEXPOSED PORTIONS OF SAID PHOTOSENSITIVE LAYER, AND REMOVING SAID INCOMPLETELY INSOLUBILIZED REMAINDER OF SAID PHOTOSENSITIVE LAYER BETWEEN SAID SUPPORT MEMBER AND SAID BOUNDARY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |