Patent US3002851A successfully refreshed from Google Patents.
US3002851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitized transparent element
Assignee: Horizons Inc
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Filing: 1957-03-28
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Granted: 1961-10-03
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Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jack L Sorkin
- 👤 Ronald C Vickery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:59
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/20; B42D25/23; G; G03; G03C; G03C1/00; G03C1/52; B42D25/40; B42D25/405; B42D25/415; B42D25/42; G03C1/76; G03C1/795; B42D2033/04; B42D2033/14; B42D2033/30; B42D25/45; B42D25/455
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF FORMING A TRANSPARENT PHOTOSENSITIZED ELEMENT OF RIGID VINYL PLASTIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ACETATE, POLYVINYL CHLORIDE AND POLYSTYRENE WHICH COMPRISES: APPLYING A SOLUTION OF A PHOTOSENSITIVE DIAZO COATING TO A SOLID TRANSPARENT BASE COMPOSED OF SAID VINYL PLASTIC AND THEREAFTER CONCURRENTLY SUBJECTING THE COATED BASE TO A TEMPERATURE BETWEEN ABOUT 100*C. AND 150*C., AND A PRESSURE OF AT LEAST 500 P.S.I., FOR A TIME SUFFICIENT TO PERMIT THE DIAZO COATING MATERIAL TO MIGRATE INTO THE BODY OF THE BASE MATERIAL BUT NOT SUFFICIENT TO DESTROY THE PHOTOSENSITIVITY OF SAID DIAZO COATING MATERIAL.
Claim 2
Independent Claim
99 words
A METHOD OF FORMING A TRANSPARENT PHOTOSENSITIZED ELEMENT OF RIGID VINYL PLASTIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ACETATE, POLYVINYL CHLORIDE AND POLYSTYRENE WHICH COMPRISES: APPLYING A SOLUTION OF A PHOTOSENSITIVE DIAZO COATING TO A SOLID TRANSPARENT BASE COMPOSED OF SAID VINYL PLASTIC AND THEREAFTER CONCURRENTLY SUBJECTING THE COATED BASE TO A TEMPERATURE BETWEEN ABOUT 100*C. AND 150*C., AND A PRESSURE OF AT LEAST 500 P.S.I., FOR A TIME SUFFICIENT TO PERMIT THE DIAZO COATING MATERIAL TO MIGRATE INTO THE BODY OF THE BASE MATERIAL BUT NOT SUFFICIENT TO DESTROY THE PHOTOSENSITIVITY OF SAID DIAZO COATING MATERIAL.
References Cited (Backward Citations)
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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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |