Australian application, no grantAustralia
Call tracing arrangements in automatic telephone systems
AU 1949025470 · Applicant: Present Invention Relates To Auto Through From One Stage Or Rank To Another Matic Telephone Systems Andmore Particu Often Arises In Automatic Telephone Systems Larly To Call Tracing
Overview
Drawings and full text
Its specification, documents and status are on IP Australia's AusPat.
Open the AusPat recordRead the whole patent
Listed from its IP Australia record in Patent Yard's archive of Australian patents past their term. Its claims, description and drawings are in the AusPat record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 21, 1949. Even if it was granted, its term would have ended by January 21, 1970.
- A pharmaceutical extension adds at most five years, so even that would have ended by January 21, 1975.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 21, 1949
GrantedNo grant recorded
Term ended byJanuary 21, 1970
Application numberAU 1949025470
Classification (IPC)—
Timeline
Timeline From IP Australia dates
Sources & verification
Official IP Australia records
Everything on this page comes from the IP Australia record linked above. Data from IP Australia's IPGOD, licensed under CC BY 2.5 AU.