Patent DE-1915-299150

Design for a triplane focusing on the attachment of struts to the middle wing-plane, joining the three surfaces together.

• Applicants' location: Berlin-Johannisthal

Sources

• Zeitschrift für Flugtechnik und Motorluftschiffahrt vol. 11, no 1 (January 1920), p. 16
• Original patent document and Bibliographic info at DPMA
• Original patent document and bibliography entry at espacenet

In keeping with our observations on patent dates, we are treating the "Patentirt im Deutschen Reiche vom" 1915-03-13 found on this original document as exactly one day after the filing date.

Patent family descending from Patent DE-1915-299150

• Patent DE-1915-299150 (English title: Triplane, Filing date: 1915-03-12, National tech categories: DE 77h.5)
• Patent HU-1916-79362 (English title: Tri-lobed aircraft, Supplementary to patent: Patent DE-1915-299150, Filing date: 1916-02-28, National tech categories: HU V/h)
• Patent GB-1920-148377 (English title: Triplane, Supplementary to patent: Patent DE-1915-299150, Filing date: 1920-07-09)

Year filed	1915
Year granted	1920
Office	DE
Patent number	299150
Inventors	Gabriel Letsch
Inventor country	DE
Inventor location
Applicant person	Gabriel Letsch
Applicant firm	AGO Flugzeugwerke G. m. b. H.
Applicant type	COMPANY + INDIV
Applicant is inventor?
Original title	Dreidecker
English title	Triplane
Tech fields	airplane, triplane, Tragfläche
Filing date	1915-03-12
Full specification filed date
Application number
Grant date
Granted?	1
Publication date	1920-01-16
Supplementary to patent
Related to aircraft?	1
Serial number
Patent agent
Assigned to
National tech categories	DE 77h.5
IPCs	IPC B64C3/00
CPCs	CPC B64C3/00
Family year	1915
First filing?	1
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	1
Number of claims	2