Patent HU-1899-18308

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Here we have a “Krocker Rezső” of “Teplitz (CS)”. This is fairly definitely the Rudolf Krocker we have elsewhere working with LTA.

Patent DE-1899-123884 has the earliest filing date withing a patent family which is being put together here, and is therefore being treated as the parent patent.

“Publication/disclosure” will be treated as “date granted”, for now. The “Megjelent (year). évi (month) hó (day)-én”, that is “Released (month) (day), (year)”, given on the original, is seemingly always later, and we do not know the 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.


Year filed 1899
Year granted 1900
Office HU
Patent number 18308
Inventors Rudolf Krocker
Inventor country AT, AH
Applicant person Rudolf Krocker
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Hajtócsavar léghajók számára
English title Hélices pour dirigeable
Tech fields LTA, Airship, Propellers, Dirigibles
Filing date 1899-12-17
Full specification filed date
Application number 18308
Grant date 1900-05-05
Granted? Yes
Publication date 1900-06-11
Supplementary to patent Patent DE-1899-123884
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories HU V/h
Family year 1899
First filing? 0
Cites these patents
Citations from after 1930
Application ID
Number of text pages 2
Number of diagram pages 1
Number of figures 6
Number of claims 3