Patent DE-1921-384750

Espacenet gives this patent the priority date 1921-12-22. We are giving it the filing date 1921-12-21, based on our notes found on patent dates, it seeming that "Patentirt im Deutschen Reiche vom" is exactly one day after the filing date. Often, we approach German patents by way international references, so the above differential is corroborated via the international relation.

Sources

• Original patent document and Bibliographic info at DPMA
• Original patent document and bibliography entry at espacenet
• Inventor location: Travemünde

Patent family descending from Patent DE-1921-384750

• Patent DE-1921-384750 (English title: Easily detachable wing attachment for aircraft, Filing date: 1921-12-21, National tech categories: DE 77h.5)
• Patent DE-1922-384751 (English title: Easily detachable wing attachment for aircraft, Supplementary to patent: Patent DE-1921-384750, Filing date: 1922-06-08, National tech categories: DE 77h.5)
• Patent DE-1922-384754 (English title: Easily detachable wing attachment for aircraft, Supplementary to patent: Patent DE-1921-384750, Filing date: 1922-07-13, National tech categories: DE 77h.5)

Year filed	1921
Year granted	1923
Office	DE
Patent number	384750
Inventors	Ernst Heinkel
Inventor country	DE
Inventor location
Applicant person	Ernst Heinkel‎
Applicant firm
Applicant type	INDIV
Applicant is inventor?	1
Original title	Leicht lösbare Tragflächenbefestigung für Flugzeuge
English title	Easily detachable wing attachment for aircraft
Tech fields	wings, airplane, frame, design
Filing date	1921-12-21
Full specification filed date
Application number
Grant date	1923-11-09
Granted?	1
Publication date	1923-11-09
Supplementary to patent
Related to aircraft?	1
Serial number
Patent agent
Assigned to
National tech categories	DE 77h.5
IPCs	IPC B64C1/26
CPCs	CPC B64C1/26
Family year	1921
First filing?	1
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages	2
Number of diagram pages	1
Number of figures	5
Number of claims	5