Patent RU-1909-41475

В. І. Гофман matches Wilhelm Jakob Hoffmann who we know had several German patents in 1908–9 related to turning/steering of airplanes. The possibilities had dates of 1908-10-02, 1908-12-04, and 1909-11-29 (one day before the present filing).

This application was given a protection certificate numbered 41475 when it was filed; we have no evidence that it was granted.

• Inventor status: иностранец – foreigner

Sources

• Patent list in Vozdukhoplavatel Vol. 7 No. 5 (May 1910), p. 430. A review in May of patents from November 1909 through February 1910, compiled by Л. Розенцвейг, L. Rosenzweig.
  • This application received a protection certificate based on Article 198/7 of the 1906 Industrial Law – Охранительныя свидѣтельства, выданныя на основании ст. 198/7 уст. о промышленности (прод. св. зак. Рос. Имп. 1906 г. ч. 4). (At the time Rosenzweig published this list, the patents only had provisional protection with serial numbers.)
  • HathiTrust OCR: 17 ноября-\41475— Иностранцу В. І. Гофману — на на- правляющее приспособленіе къ аэропланамъ
  • 1909-11-17 Julian = 1909-11-30 Gregorian
• VPTB search – no match

Year filed	1909
Year granted
Office	RU
Patent number
Inventors	Wilhelm Jakob Hoffmann
Inventor country	DE
Inventor location
Applicant person	В. І. Гофман
Applicant firm
Applicant type	INDIV
Applicant is inventor?	1
Original title	направляющее приспособленіе къ аэропланамъ
English title	Turning apparatus for airplanes
Tech fields	airplane, rudder, control
Filing date	1909-11-30
Full specification filed date
Application number
Grant date
Granted?	0
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Supplementary to patent
Related to aircraft?	1
Serial number	41475
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IPCs
CPCs
Family year	1909
First filing?	0
Cites these patents
Citations from after 1930
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