IP Library › Granted Patent US 6,751,309
Granted Patent Utility
US 6,751,309 · Confirmation No. 8839

METHOD AND APPARATUS FOR EXTENDING CALLS TO INTERNAL SWITCH EXTENSIONS OUT TO EXTERNAL NETWORK ENDPOINTS

Inventor: Stephen M. Milton
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2008-05-05 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2004-05-06 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-07-18 TRNA Transmittal of New Application 1 View
2001-07-18 SPEC Specification 12 View
2001-07-18 CLM Claims 3 View
2001-07-18 ABST Abstract 1 View
2001-07-18 DRW Drawings-only black and white line drawings 4 View
2001-07-18 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,751,309
App. No.
09/908,156
Filed
2001-07-18
Granted
2004-06-15
Pub. No.
US20030016810A1
Art Unit
2642
PTA
-4 days