Patent DE-1906-175478

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This is Joseph Hofmann‎‎, or more properly in German Josef Hofmann. Though "J. Hofmann" is found on the original document, the Lilienthal museum sight Objekt gives "Hofmann, Josef". Various cross-referenced patent data has confirmed for us that "J. Hofmann" is Joseph Hofmann. The Lilienthal museum sight Objekt for this patent gives the patent title "Neuerung an Flugmaschinen" while the associated Digitalisat display of the original patent document gives "Flugmaschine mit Luftbehälter". The The Objekt for this patent gives the filing date 1906-01-02 while the associated Digitalisat gives 1906-01-03.

The original twice gives the national patent classification we would write as DE 77h.6, with that on the first pencilled out and replaced with something along the lines of "Klasse 62c. Gruppe 15/...", with perhaps even a further stage of subclassification. This happens on several Hofmann patents.

Sources


Year filed 1906
Year granted 1906
Office DE
Patent number 175478
Inventors Joseph Hofmann
Inventor country DE
Applicant person Joseph Hofmann
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Neuerung an Flugmaschinen -or- Flugmaschine mit Luftbehälter
English title Innovation in flying machines -or- flying machines with air tanks
Tech fields
Filing date 1906/01/03
Full specification filed date
Application number
Grant date
Granted? Yes
Publication date 1906/09/29
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories DE 77h.6
IPCs
CPCs
Family year 1906
First filing? No
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 1
Number of diagram pages 1
Number of figures 3
Number of claims 2