US Patent No: D309293

Number of patents in Portfolio can not be more than 2000

Pocket data input/output terminal

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Abstract

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Helbig, Jr Arthur L 3501 Upper Hill Ct., Ellicott City, MD 21043 2 23

Cited Art

Patent Info (Count) # Cites Year
 
CITICORP CREDIT SERVICES, INC. (1)
D293241 Pocket terminal 81 1985
 
FISHER - PRICE, INC., A DE CORP. (1)
D292222 Toy calculator 9 1985
 
MANNESMANN AKTIENGESELLSCHAFT (1)
4,836,699 Operator panel for printers 16 1987
 
MASTERCARD INTERNATIONAL INCORPORATED (1)
D298536 Credit card verification terminal 33 1986
 
THE OHIO ART COMPANY (1)
4,764,763 Electronic sketching device 14 1985

Patent Citation Ranking

  • Citation Ranking not provided for expired patents

Forward Cites

Patent Info (Count) # Cites Year
 
SPYRUS, INC. (2)
D394427 Smart card reader 4 1997
D394428 Smart card reader 10 1997
 
ACHIP TECHNOLOGIES, INC. (1)
D318462 Pocket electronic directory 5 1989
 
APPLE INC. (1)
D671947 Housing for an electronic device 1 2011
 
MICROSOFT CORPORATION (1)
D575790 Portion of an input device 0 2007
 
NINTENDO OF AMERICA INC. (1)
D322242 Remote control transmitter 22 1989
 
NORTH AMERICAN PHILIPS CORPORATION (1)
D317134 Remote wireless display for a bathroom scale 2 1989
 
PELSTAR, LLC (1)
D313565 Weight display module 6 1990
 
RANPAK CORP. (1)
D477323 Front of an operator panel for a cushioning conversion machine 2 2001
 
RUSSOUND/FMP, INC. (1)
D481706 Audio system keypad 3 2002
 
SHARP KABUSHIKI KAISHA (1)
D328891 Memorandum input and output terminal 7 1990
 
UNIDEN AMERICA CORPORATION (1)
D384078 Programmable dialer device 0 1996
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (5)
D348050 Hand held computer 4 1992
5,884,281 Electronic grocery lister 46 1996
D427588 Programmable dialer device 0 1997
D413895 Programmable dialer device 1 1997
D421605 Time activated answering machine 0 1999