Patent Yard Sign in
Australian application, no grantAustralia

Improvements in ribbon reversing mechanism for typewriting machines

AU 1910016759 · Applicant: The Silent Writing Machine Company

AusPat record

Overview

Drawings and full text

Its specification, documents and status are on IP Australia's AusPat.

Open the AusPat record

Read 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 6, 1910. Even if it was granted, its term would have ended by January 6, 1931.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 6, 1936.
  • 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 6, 1910
GrantedNo grant recorded
Term ended byJanuary 6, 1931
Application numberAU 1910016759
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1911191419171920192319261929Application filedJan 6, 1910Term ended byJan 6, 1931

Sources & verification

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.