Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US39553889 Jun 197511 May 1976American Locker CompanyCombination magnetic key
US429756928 Jun 197927 Oct 1981Datakey, Inc.Microelectronic memory key with receptacle and systems therefor
US432612526 Jun 198020 Apr 1982Datakey, Inc.Microelectronic memory key with receptacle and systems therefor
US437996623 Jul 198112 Apr 1983Datakey, Inc.Receptacle for electronic information key
US442079410 Sep 198113 Dec 1983Research, IncorporatedIntegrated circuit switch
US443699311 Jan 198213 Mar 1984Datakey, Inc.Electronic key
US44585128 Mar 198210 Jul 1984Cylinder lock with key for mechanical and/or electromechanical locking
US46427349 Dec 198510 Feb 1987Research, IncorporatedIntegrated circuit chip switch
US47060843 Oct 198510 Nov 1987Coded key-type locking system
US47526792 Mar 198721 Jun 1988Datakey, Inc.Receptacle device
US489163613 Apr 19892 Jan 1990NCR CorporationElectronic keylock system
USD26504927 May 198022 Jun 1982Datakey, Inc.Electronic information key
USD27412617 Sep 19825 Jun 1984Datakey, Inc.Electronic information key
USD55758823 Aug 200618 Dec 2007Datakey Electronics, Inc.Electronic key
USD6494869 Jul 200929 Nov 2011ATEK Products , LLCElectronic token and data carrier
USD64989430 Dec 20086 Dec 2011ATEK Products, LLCElectronic token and data carrier
USD64989530 Jan 20096 Dec 2011ATEK Products, LLCElectronic token and data carrier
USD64989630 Jan 20096 Dec 2011ATEK Products, LLCElectronic token and data carrier receptacle

Drawings