Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 455/462
Name: Telecommunications > Radiotelephone system > Including private cordless extension system
Description: Subject matter wherein a base transceiver having direct connection to a landline telephone switching system provides restricted telephony access to a pre-selected cordless extension unit.










Sub-classes under this class:

Class Number Class Name Patents
455/464 Channel selection or allocation 683
455/463 Multi-users 269


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
4119800 Radio-telephone interconnection system Oct. 10, 1978
4053717 Cordless telephone Oct. 11, 1977
4039760 Cordless telephone system Aug. 2, 1977
4005269 Apparatus for interfacing between telephone and wireless communication systems Jan. 25, 1977
3962553 Portable telephone system having a battery saver feature Jun. 8, 1976
3936616 "Wild" mobile disable circuit Feb. 3, 1976

1 2 3 4 5 6 7 8 9 10 11 12 13










 
 
  Recently Added Patents
Method and composition for attracting arthropods by volatizing an acid
Radio communication devices, information providers, methods for controlling a radio communication device and methods for controlling an information provider
5-phenyl-pentanoic acid derivatives as matrix metalloproteinase inhibitors for the treatment of asthma and other diseases
Controlling generation of debug exceptions
System for highlighting targets on head up displays with near focus plane
Cross-linkable compositions
Method, system and computer program product for verifying floating point divide operation results
  Randomly Featured Patents
Device for displaying television pictures and deflection unit therefor
Wheel covering
Method and apparatus for cooling drawn wire
User interface for graphical application tool
Multifunction hexadecimal instruction form system and program product
Enforced routing in switch
Peripheral card locking device
Pressure-controlled well tester adapted to be selectively retained in a predetermined operating position
Semiconductor package and method for manufacturing the same
Rubber-modified fire-retardant imide copolymers