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US3789756A Expired / Lapsed US ⏱️ 0.0 years remaining

Stencil construction

Assignee: Weber Marking Systems Inc
•
Filing: 1972-07-20
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Granted: 1974-02-05
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Expires: 1992-07-20
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Abstract

Abstract A stencil construction in which a generally rectangularly shaped stencil is adhesively secured along its peripheral edges to a backing sheet. The stencil and backing sheet have a generally rectangularly shaped central copy portion in which no adhesive is used therebetween. The central portion of the backing sheet is cut through on selected portions of its periphery and at least one side edge of the central portion of the backing sheet is perforated therealong so that it may optionally be used as a hinge for the remainder of the central portion or the central portion of the backing sheet may be torn off after the stencil has been cut with desired legends. During cutting of the stencil the backing sheet is in abutting position behind the central copy portion of the stencil. It is only during use of the stencil as a reproducing tool that the central portion of the backing sheet is either swung out of the way about its perforated hinge or torn off.

Inventors

  • 👤 J Weber

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 21:51
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/24; B41N1/248

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 174 words
A stencil construction comprising an elongated strip of stencil material and a correspondingly elongated strip of backing sheet, said combined strips of stencil material and backing sheet having transversely defined contiguous rectangular sections, said combined strips having transverse perforation lines at spaced intervals defining contiguous rectangular sections, means adhesively securing said stencil material along the peripheral side edges of each rectangular section to said backing sheet, each of said rectangular section of stencil material and backing sheet having a generally rectangularly shaped central copy portion in which no adhesive is used therebetween, said backing sheet cut through on three side edges of the periphery of each of the rectangularly shaped central copy portions, and the fourth side edge of each of the rectangularly shaped central copy portions of the backing sheet being perforated therealong so that they may optionally be used as hinges for the remainder of the central copy portions or the central portions of the backing sheet may be torn off as desired after the stencils have been cut with desired legends.
Claim 2
Dependent Claim 174 words
A stencil construction comprising an elongated strip of stencil material and a correspondingly elongated strip of backing sheet, said combined strips of stencil material and backing sheet having transversely defined contiguous rectangular sections, said combined strips having transverse perforation lines at spaced intervals defining contiguous rectangular sections, means adhesively securing said stencil material along the peripheral side edges of each rectangular section to said backing sheet, each of said rectangular section of stencil material and backing sheet having a generally rectangularly shaped central copy portion in which no adhesive is used therebetween, said backing sheet cut through on three side edges of the periphery of each of the rectangularly shaped central copy portions, and the fourth side edge of each of the rectangularly shaped central copy portions of the backing sheet being perforated therealong so that they may optionally be used as hinges for the remainder of the central copy portions or the central portions of the backing sheet may be torn off as desired after the stencils have been cut with desired legends.

References Cited (Backward Citations)

US746950A Cited
US1707095A Cited
US1909913A Cited
US2500612A Cited
US2875687A Cited
US2942368A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-04 1977-08-06 1978-02-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-04 1981-08-06 1982-02-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-04 1985-08-06 1986-02-05 $7700.00 Window Closed / Lapsed

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