Patent GB-1909-5391

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Year filed 1909
Year granted 1909
Office GB
Patent number 5391
Inventors James Robertson Porter
Inventor country GB
Applicant person James Robertson Porter
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements in Air-ships
English title Improvements in Airships
Tech fields airships
Filing date 1909-03-05
Full specification filed date 1909-08-31
Application number 190905391D
Grant date 1909-12-16
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent Newnham Browne & Co.
Assigned to
National tech categories
IPCs IPC B64C27/20, IPC B64C29/00
CPCs CPC B64C27/20
Family year 1909
First filing? 1
Cites these patents
Citations from after 1930
Application ID 23578874
INPADOC family ID 11074435
Number of text pages 2
Number of diagram pages 1
Number of figures 2
Number of claims 2