Patent DE-1922-393686

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Espacenet gives this patent the priority date 1922-06-09. We are giving it the filing date 1922-06-08, based on our notes found on patent dates, it seeming that "Patentirt im Deutschen Reiche vom" is exactly one day after the filing date. Often, we approach German patents by way international references, so the above differential is corroborated via the international relation.


Year filed 1922
Year granted 1924
Office DE
Patent number 393686
Inventors Ernst Heinkel
Inventor country DE
Applicant person Ernst Heinkel
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Leicht lösbare Tragflächenbefestigung für Flugzeuge
English title Easily detachable wing attachment for aircraft
Tech fields airplane, wings, frame, design
Filing date 1922-06-08
Full specification filed date
Application number
Grant date 1924-04-14
Granted? 1
Publication date 1924-04-14
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories DE 77h.5
IPCs IPC B64C3/56
CPCs CPC B64C3/56
Family year 1922
First filing? 1
Cites these patents
Citations from after 1930
Application ID
Number of text pages 2
Number of diagram pages 1
Number of figures 3
Number of claims 3