Drilldown: Patents

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Patents > Office: US & Tech fields: balloon & Number of text pages: 1-4

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Office: (Click arrow to add another value)
Inventors:
Ralph Hazlett Upson (4) · Johann Schütte (4) · Melvin Vaniman (3) · Joseph Allison Steinmetz (2) · Stewart Cairncross (2)
Inventor country:
Applicant person:
None (19) · Johann Schütte (4) · Melvin Vaniman (2) · Joseph Allison Steinmetz (2)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (42)
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Related to aircraft:
Patent agent:
None (48) · Munn & Co. (5) · Victor J. Evans (3) · None (2)
National tech categories:
None (10) · USPC 244/30 (10) · USPC 244/97 (9) · USPC 244/127 (7) · USPC 244/25 (5) · USPC 244/28 (5) · USPC 244/26 (5) · USPC 244/99 (4) · USPC 244/31 (4) · USPC 244/125 (4) · USPC 244/126 (4) · USPC 244/73R (3) · USPC 244/32 (3) · USPC 244/33 (3) · USPC 244/133 (3) · USPC 244/128 (3)
First filing:
Cites these patents:
Citations from after 1930:
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