Patent HU-1917-75857

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Though in this case “Publication/disclosure” as displayed in the entered Hungarian data gives a date earlier than that of the “Megjelent (year). évi (month) hó (day)-én (or án)”, as per usual, this is a rare instance in which the years given are not the same. Whether this patent was “granted” in 1919 or 1920 is a highly technical matter, administratively speaking.


  • “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: Mannheim-Rhein, Germany

Year filed 1917
Year granted 1919
Office HU
Patent number 75857
Inventor country DE
Applicant person
Applicant firm Luftschiffbau Schütte-Lanz
Applicant type COMPANY
Applicant is inventor?
Original title Léghajóváz fatartókból
English title Airship frame made of wooden racks
Tech fields Airship, Frame, Construction, Wood, Construction, Design
Filing date 1917-07-06
Full specification filed date
Application number 75857
Grant date 1919-12-15
Granted? Yes
Publication date 1920-01-31
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories HU V/h
Family year 1917
First filing?
Cites these patents
Citations from after 1930
Application ID
Number of text pages 3
Number of diagram pages 4
Number of figures 19
Number of claims 7