Patent US-1913-1054968
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Airplane with two side propellers (behind main sustaining plane) and rear propeller; two pairs of wheels
- Inventor location (imputed by HistPat): Chicago, IL, Cook county, IL (FIPSloc=17031)
Sources
- Patent 1054968 document and bibliographic info on espacenet
- Patent 1054968 at google patents
Year filed | 1912 |
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Year granted | 1913 |
Office | US |
Patent number | 1054968 |
Inventors | Frederick A. Helwig |
Inventor country | US |
Applicant person | Frederick A. Helwig |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | 1 |
Original title | Aeroplane |
English title | Aeroplane |
Tech fields | airplane, frame, rudder, navigation, landing, wheels, stability |
Filing date | 1912-05-29 |
Full specification filed date | |
Application number | 1912700372 |
Grant date | 1913-03-04 |
Granted? | 1 |
Publication date | |
Supplementary to patent | |
Related to aircraft? | |
Serial number | 700372 |
Patent agent | |
Assigned to | |
National tech categories | USPC 244/233 |
IPCs | |
CPCs | CPC B64C2700/6295 |
Family year | 1912 |
First filing? | |
Cites these patents | |
Citations from after 1930 | |
Application ID | |
INPADOC family ID | |
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Number of diagram pages | |
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