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US3715067A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for manufacturing slide covers

Assignee: Propper Manufacturing Co Inc
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Filing: 1971-02-16
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Granted: 1973-02-06
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Expires: 1991-02-16
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Abstract

Abstract SLIDE COVERS AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME. THE SLIDE COVER IS MADE OF A TRANSPARENT MATERIAL SUCH AS GLASS AND HAS A SMOOTH, POLISHED SURFACE. AN ELONGATED BLANK THE LENGTH OF WHICH IS SEVERAL TIMES THAT OF THE SLIDE COVERS IS FED BY A SUITABLE FEEDING STRUCTURE THROUGH AND BEYOND A CUTTING LOCATION UNTIL A LEADING END OF THE BLANK IS SITUATED AT A DISTANCE BEYOND THE CUTTING LOCATION EQUAL TO THE REQUIRED LENGTH OF THE SLIDE COVER. A CONTROL ASSEMBLY THEN AUTOMATICALLY TERMINATES THE FEEDING OF THE BLANK AND A CUTTING STRUCTURE CUTS ACROSS THE BLANK AT THE CUTTING LOCATION SO THAT A SLIDE COVER OF PREDETERMINED LENGTH IS SEPARATED FROM THE BLANKS, WHEREUPON THIS CYCLE OF OPERATIONS IS AUTOMATICALLY REPEATED. THE ELONGATED BLANKS FROM WHICH THE SLIDE CUTTERS ARE DERIVED ARE FED AUTOMATICALLY ONE AFTER THE OTHER THROUGH AND BEYOND THE CUTTING LOCATION WHERE THE ABOVE OPERATIONS TAKE PLACE. AS THE SLIDE COVERS ARE CUT FROM THE BLANKS THEY ARE COLLECTED AT A COLLECTING STATION WHERE A PREDETERMINED NUMBER OF THE SLIDE COVERS ARE COLLECTED. UPON REACHING THIS PREDETERMINED NUMBER THE OPERATIONS ARE AUTOMATICALLY TERMINATED UNTIL THE COLLECTED PREDETERMINED NUMBER OF COVERS ARE REMOVED FROM THE COLLECTING LOCATION, WHEREUPON THE ABOVE CYCLE OF OPERATIONS THEN AUTOMATICALLY STARTS AGAIN.

Inventors

  • 👤 P Hunsinger
  • 👤 J White

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:59
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/023; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/325; Y10T83/00; Y10T83/182; Y10T83/525; Y10T83/536; Y10T83/541; Y10T83/544

Claims Analysis

Total Claims: 0
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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) 1976-02-06 1976-08-07 1977-02-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-06 1980-08-07 1981-02-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-06 1984-08-07 1985-02-06 $7700.00 Window Closed / Lapsed

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