Patent US-1917-1231444

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Year filed 1915
Year granted 1917
Office US
Patent number 1231444
Inventors Ruter William Springer
Inventor country US
Applicant person Ruter William Springer
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title
English title
Tech fields
Filing date 1915-03-29
Full specification filed date
Application number 1796115
Grant date 1917-06-26
Granted? 1
Publication date
Supplementary to patent
Related to aircraft?
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs CPC B64C3/14
Family year 1915
First filing? 1
Cites these patents
Citations from after 1930
Application ID 47871543
INPADOC family ID 43497284
Number of text pages
Number of diagram pages
Number of figures
Number of claims

Sources