The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2006
Filed:
Dec. 23, 2002
Applicants:
Gab-young Lee, Seoul, KR;
Won-young Lee, Seoul, KR;
Inventors:
Gab-Young Lee, Seoul, KR;
Won-Young Lee, Seoul, KR;
Assignee:
LG-Nortel Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01); H04M 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a highway expansion apparatus for a key telephone system and an operation method thereof, by connecting a MPB (main process board) of a master system with a system LMU (ink module unit) of an expansion system through a cable and generating a highway to be provided from the MPB to the expansion system, a highway of the key telephone system can be expanded.