Patent DE-1907-240976

Supplement to Patent DE-1907-240268, of the same title, specifying thickness of the S-shaped wing at different points and thereby clarifying the description of the wing's camber.

• Inventor location: München

Sources

• Lilienthal museum patents Objekt
• Original patent document and Bibliographic info at DPMA
• Original patent document and bibliography entry at espacenet

As per our observations on patent dates, the "Patentirt im Deutschen Reiche vom 28.Dezember 1907 ab." shown on this original document is taken as one after the filing date in Germany. This is not only worth noting on general principle. This protocol also jives with the international priority date references made to German patents.

Being that this patent is itself an addition, within the German system, all non-German patents making reference to it ultimately stream from Patent DE-1907-240268, as well.

Patents which are supplementary to this one

• Patent GB-1909-13670 (Filing date: 1909-06-10)

Year filed	1907
Year granted	1911
Office	DE
Patent number	240976
Inventors	Karl Ludwig Waldemar Geest
Inventor country	DE
Inventor location
Applicant person	Karl Ludwig Waldemar Geest
Applicant firm
Applicant type	INDIV
Applicant is inventor?	Yes
Original title	Flügelartige Tragfläche für Luftfahrzeuge
English title	Wing-form drag-surface for aircraft
Tech fields	airfoil, camber, Tragfläche
Filing date	1907/12/27
Full specification filed date
Application number
Grant date
Granted?	Yes
Publication date	1911/11/24
Supplementary to patent	Patent DE-1907-240268
Related to aircraft?	1
Serial number
Patent agent
Assigned to
National tech categories	DE 77h.5
IPCs	IPC B64C3/10
CPCs	CPC B64C3/14
Family year	1907
First filing?	No
Cites these patents
Citations from after 1930
Application ID	10074719
INPADOC family ID
Number of text pages	2
Number of diagram pages	1
Number of figures	4
Number of claims	1