Patent GB-1918-122164

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  • Inventor location: "Recently of Batavia Java, now residing at No. 2405, West 6th Street," Los Angeles, California; Physician; Subject of the Queen of the Netherlands" -- interesting!

Patent family descending from Patent US-1918-1435190

Sources


Year filed 1918
Year granted 1920
Office GB
Patent number 122164
Inventors Pieter Barteld Van Leggelo
Inventor country US, NL, Java
Applicant person Pieter Barteld Van Leggelo
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements in and relating to Air-craft of the Helicopter Type
English title Improvements in and relating to Air-craft of the Helicopter Type
Tech fields helicopter
Filing date 1918-04-03
Full specification filed date
Application number 5664/18
Grant date 1920-09-09
Granted? 1
Publication date
Supplementary to patent Patent US-1918-1435190
Related to aircraft? 1
Serial number
Patent agent W. P. Thompson & Co.
Assigned to
National tech categories
IPCs IPC B64C27/28
CPCs CPC B64C27/28, CPC B64C2700/629
Family year 1918
First filing? 0
Cites these patents
Citations from after 1930
Application ID 21139799
INPADOC family ID 10898303
Number of text pages 4
Number of diagram pages 3
Number of figures 14
Number of claims 3