Patent FR-1909-408872

This patent has only very scanty bibliographical data on Espacenet, and the original document is missing altogether. The filing date and the patent number itself are given on the certificate of addition mentioned below. The IPC and CPC data pertinent to this patent itself are found on Espacenet. It is highly likely that this patent was granted, and that it shared the title of the certificate of addition.

Sources

• Original patent document and bibliography entry on espacenet
• on google patents

Patent family descending from Patent FR-1909-408872

• Patent FR-1909-408872 (English title: Automatic stability for flying machines, National tech categories: FR 6.4)
• Patent FR-1909-408872.11764 (English title: Automatic stability for flying machines, Supplementary to patent: Patent FR-1909-408872, National tech categories: FR 6.4)
• Patent FR-1910-408872.13189 (English title: Automatic stability for flying machines, Supplementary to patent: Patent FR-1909-408872, National tech categories: FR 6.4)

Year filed	1909
Year granted
Office	FR
Patent number	408872
Inventors	Auguste-Hippolyte Étévé
Inventor country	FR
Applicant person	Auguste-Hippolyte Étévé
Applicant firm
Applicant type	INDIV
Applicant is inventor?	Yes
Original title	Stabilisateur automatique pour machines volantes
English title	Automatic stability for flying machines
Tech fields	airplane, stability, design, construction, aerodynamics, automatic stability
Filing date	1909/09/25
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Supplementary to patent
Related to aircraft?	Yes
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National tech categories	FR 6.4
IPCs	IPC B64C1/00, IPC B64C17/00
CPCs	CPC B64C17/00
Family year	1909
First filing?	Yes
Cites these patents
Citations from after 1930
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