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US4302513A Expired / Lapsed US ⏱️ 0.0 years remaining

Elastic typing medium for reduction of message size

Assignee: Individual
•
Filing: 1980-08-07
•
Granted: 1981-11-24
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Expires: 2000-08-07
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Abstract

Abstract During manufacture, a rubber or other elastic sheet is forcibly stretched out and smoothly affixed to an adhesive spread out on a backing of cardboard or similar material. The sheet is suitable for receiving typing from a typewriter, and the entire assembly is suitable for insertion and bending over the roll of a common typewriter. During operation, a person types a message on the sheet, removes the assembly from the typewriter and forcibly peels the sheet off the backing. The sheet returns to its original unstretched shape, and the typed words, along with the spaces between the words, occupy less space than those of a similar message typed on ordinary paper. When used with a Xerox or similar copying machine, the reduction in the size of the words and spaces permits the use of many more words per final, normal size page of reproduced document.

Inventors

  • 👤 David E. Russell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 10:53
CPC Classifications
B; B41; B41J; B41J3/00; Y; Y10; Y10S; Y10S428/00; Y10S428/908; Y10S428/91; Y10T; Y10T428/00; Y10T428/14; Y10T428/16; Y10T428/163; Y10T428/24; Y10T428/24777; Y10T428/31504; Y10T428/31826; Y10T428/31841

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 82 words
In combination, a cardboard or similar semirigid sheet or plate, suitable for insertion in a typewriter roll, and a stretched sheet of rubber, elastomer or other elastic material capable of receiving typing or ink inscriptions mounted on said sheet or plate with a pressure type adhesive in such a manner that the sheet can be manually removed thereby allowing the sheet to return through inherent elastic force to a smaller size presenting typewritten or inked messages and figures of a reduced size.
Claim 2
Dependent Claim 82 words
In combination, a cardboard or similar semirigid sheet or plate, suitable for insertion in a typewriter roll, and a stretched sheet of rubber, elastomer or other elastic material capable of receiving typing or ink inscriptions mounted on said sheet or plate with a pressure type adhesive in such a manner that the sheet can be manually removed thereby allowing the sheet to return through inherent elastic force to a smaller size presenting typewritten or inked messages and figures of a reduced size.

References Cited (Backward Citations)

US2177539A Cited
US2664043A Cited
US2887941A Cited
US3790435A Cited
US4097645A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-11-23 1985-05-25 1985-11-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-11-23 1989-05-25 1989-11-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-11-23 1993-05-25 1993-11-24 $7700.00 Window Closed / Lapsed

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