Patent DE-1913-297938

• Applicant location: Untertürkheim-Stuttgart
• " »K auf Grund der Verordnung über den Ausschluß der Öffentlichkeit für Patente und Gebrauchsmuster vom 8. Februar 1917 ohne voraufgegangene Bekanntmachung der Anmeldung erteilt." This note indicates that the patent was granted without being made public per the regulation of 8 February 1917. Most patents in this list (in ZFM) don't have this marking, but this one probably has the earliest submission date (and lowest number) among them. This note points the way towards our further investigation of wartime patent delays, and it also suggests there could sometimes be longer (than a few weeks) gaps between date granted (erteilt) and date published (ausgegeben) in German patents.

Sources

• Zeitschrift für Flugtechnik und Motorluftschiffahrt Jahrgang IX. (1918) Heft 1/2, p. 14
• Original patent document and Bibliographic info at DPMA
• Original patent document and bibliography entry at espacenet

Year filed	1913
Year granted	1918
Office	DE
Patent number	297938
Inventors
Inventor country	DE
Applicant person
Applicant firm	Daimler Motoren-Gesellschaft
Applicant type	COMPANY
Applicant is inventor?
Original title	Vergaser für Verbrennungskraftmaschi- nen mit Haupt- und Zusatzlufteinlaß
English title	Carburetor for combustion engine with primary and secondary air inlets
Tech fields	motor, ICE
Filing date	1913-12-23
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Granted?	1
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Supplementary to patent
Related to aircraft?	1
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National tech categories	DE 46c.13
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Family year	1913
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Cites these patents
Citations from after 1930
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