US2576491A Expired / Lapsed US ⏱️ 0.0 years remaining

Composite sheet material

Assignee: Individual

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Filing: 1948-05-21

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Granted: 1951-11-27

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Expires: 1968-05-21

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Abstract

No abstract record available.

Inventors

👤 Ulano Joseph

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-29 03:25

CPC Classifications

B; B05; B05C; B05C17/00; B05C17/06; B41; B41N; B41N1/00; B41N1/24; B41N1/242; Y; Y10; Y10T; Y10T428/00; Y10T428/26

Claims Analysis

Total Claims: 2

Claim 1

Independent Claim 57 words

A COMPOSITE SHEET FOR USE IN FORMING SILK SCREEN STENCILS INCLUDING A BACKING SHEET OF VINYL RESIN COMPRISING A COPOLYMER OF A VINYL HALIDE AND A VINYL ESTER OF AN ALIPHATIC ACID, SAID BACKING SHEET HAVING AN AVERAGE THICKNESS OF ABOUT 0.005 INCH AND BEING DIMENSIONAL STABLE IN THE PRESENCE OF MOISTURE, A CUTTABLE STENCIL FILM, AND

Claim 2

Dependent Claim 57 words

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)	1954-11-26	1955-05-28	1955-11-27	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1958-11-26	1959-05-28	1959-11-27	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1962-11-26	1963-05-28	1963-11-27	$7700.00	Window Closed / Lapsed

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