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US3568401A Expired / Lapsed US ⏱️ 0.0 years remaining

Machines for inserting paper sheets into envelopes

Assignee: BUSINESS AID INVENTIONS Ltd
•
Filing: 1968-07-08
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Granted: 1971-03-09
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Expires: 1988-07-08
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Abstract

Abstract MACHINE FOR INSERTING PAPER SHEETS AND LIKE ENCLOSURES INTO ENVELOPES IN WHICH ENVELOPES ARE FED SINGLY BY A FIRST CONVEYOR SYSTEM FROM A BULK SUPPLY STATION TO AN INSERTING STATION PAST MEANS WHICH OPEN AND MOISTEN THE GUM ON THE ENVELOPE FLAP, IN WHICH ONE OR TWO SEPARATE INSERTS ARE LIKEWISE FED SINGLY BY FURTHER CONVEYOR SYSTEMS FROM RESPECTIVE BULK SUPPLY STATIONS TO SAID INSERTING STATION AT WHICH THEY ARE GIVEN A BOWED SHAPING, TRANSVERSE TO THE INSERTION DIRECTION BY CONVEYOR ROLLER MEANS WHICH NOT ONLY ROTATE TO PROPEL THE INSERTS BUT ALSO SWING BODILY TOWARDS THE ENVELOPE MOUTH WHICH IS OPENED BY MECHANICAL FINGERS AND A JET OF COMPRESSED AIR, THE INSERTING STATION INCLUDING A TILTING TABLE WHICH OPERATES TO DIRECT EACH FILLED ENVELOPE THROUGH A PAIR OF FLAP CLOSING AND SEALING ROLLERS TO A DELIVERY STATION.

Inventors

  • 👤 Francois Rodolphe Bonsch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:52
CPC Classifications
B; B43; B43M; B43M5/00; B43M5/04; B43M5/042

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) 1974-03-08 1974-09-07 1975-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-08 1978-09-07 1979-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-08 1982-09-07 1983-03-09 $7700.00 Window Closed / Lapsed

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