US2999016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing material
Assignee: Keuffel and Esser Co
•
Filing: 1955-03-24
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Granted: 1961-09-05
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Expires: 1975-03-24
Abstract
No abstract record available.
Inventors
- 👤 Allan R A Beeber
- 👤 Daniel S Spechler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:26
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A DIMENSIONALLY STABLE FLEXIBLE SHEET MATERIAL FOR CARRYING A HIGHLY PRECISE IMAGE WHICH MAY BE COPIED COMPRISING A BASE FILM OF ORIENTED POLYETHYLENE TEREPHTHALATE AND AN ADHERENT OVER-COAT OF A FILM FORMING RESINOUS MATERIAL COMPRISING A SUBSTANTIAL PROPORTION OF AN UNSATURATED FATTY OIL MODIFIED GLYCEROL PHTHALATE ALKYD RESIN WHICH IS PROVIDED WITH A MATERIAL OPAQUE TO ACTINIC LIGHT WHEREBY A DIMENSIONALLY STABLE MASTER CAN BE OBTAINED BY TREATMENT OF THE OPAQUING MATERIAL TO PROVIDE AREAS OF DIFFERENT OPACITY FOR USE IN REPRODUCTIONS BY ACTINIC LIGHT PROCESSES IN WHICH THE ACTINIC LIGHT IS AFFECTED BY THE DIFFERENCE IN OPACITY RESULTING FROM THE TREATMENT THEREOF IN DIFFERENT AREAS.
Claim 2
Dependent Claim
106 words
A DIMENSIONALLY STABLE FLEXIBLE SHEET MATERIAL FOR CARRYING A HIGHLY PRECISE IMAGE WHICH MAY BE COPIED COMPRISING A BASE FILM OF ORIENTED POLYETHYLENE TEREPHTHALATE AND AN ADHERENT OVER-COAT OF A FILM FORMING RESINOUS MATERIAL COMPRISING A SUBSTANTIAL PROPORTION OF AN UNSATURATED FATTY OIL MODIFIED GLYCEROL PHTHALATE ALKYD RESIN WHICH IS PROVIDED WITH A MATERIAL OPAQUE TO ACTINIC LIGHT WHEREBY A DIMENSIONALLY STABLE MASTER CAN BE OBTAINED BY TREATMENT OF THE OPAQUING MATERIAL TO PROVIDE AREAS OF DIFFERENT OPACITY FOR USE IN REPRODUCTIONS BY ACTINIC LIGHT PROCESSES IN WHICH THE ACTINIC LIGHT IS AFFECTED BY THE DIFFERENCE IN OPACITY RESULTING FROM THE TREATMENT THEREOF IN DIFFERENT AREAS.
References Cited (Backward Citations)
US2831783A
Cited
US1492023A
Cited
US2373289A
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US2452705A
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US2627088A
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US2698239A
Cited
US2717842A
Cited
US2718476A
Cited
US2810661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |