Patent HU-1915-86545

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This patent makes specific priority date reference to a patent filed 1914-10-21.

Cf. Patent AT-1915-79255; both likely based on the same German original, filed 21 October 1914, concerning the design of a biplane, focused on propeller arrangement.


  • “Publication/disclosure” will be treated as “date granted”, for now. The “Megjelent (year). évi (month) hó (day)-én (or án)”, that is “Released (month) (day), (year)”, given on the original, is seemingly always later, and we do not know which legally constitutes the patent’s being “granted”. Fortunately, filing date data is clean and simple and consistent between the data page and the original.
  • the Szellemi Tulajdon Nemzeti Hivatala database in anglophone setting, choosing the Patent option, among the Advanced search on the left of the page, and using patent classification “V/h” as the keyword
  • Original .pdf drawn from Szellemi Tulajdon Nemzeti Hivatala database
  • (Virtual or direct analogue access to Szabadalmi Kőzlőny will facilitate the gathering of other data.)
  • Inventor location: Frankfurt-am-Main
  • Inventor occupation: “Private Engineer” (Magánmérnök)

Year filed 1915
Year granted 1924
Office HU
Patent number 86545
Inventors Oskar Ursinus
Inventor country DE
Applicant person Oskar Ursinus
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Repülőgép elrendezés
English title Aircraft layout
Tech fields airplane, design, frame, construction, biplane
Filing date 1915-11-15
Full specification filed date
Application number
Grant date 1924-08-15
Granted? No
Publication date 1931-05-10
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories HU V/h
Family year
First filing? No
Cites these patents
Citations from after 1930
Application ID
Number of text pages 1
Number of diagram pages 1
Number of figures 2
Number of claims 2