Difference between revisions of "Patent GB-1913-9028"

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(inventor is known to be British)
(clearly related to aircraft)
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Latest revision as of 10:50, 27 September 2021

The original patent specification does not seem to be available at espacenet.


Year filed 1913
Year granted 1913
Office GB
Patent number 9028
Inventors Everard Richard Calthrop
Inventor country GB
Applicant person Everard Richard Calthrop‎‎
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements in and relating to Parachutes
English title Improvements in and relating to Parachutes
Tech fields parachutes
Filing date 1913
Full specification filed date
Application number
Grant date 1913
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories
IPCs IPC B64D17/72
CPCs CPC B64D17/72
Family year 1913
First filing? 1
Cites these patents
Citations from after 1930
Application ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims