View source for Patent US-1882-263397

[[File:Patent Drawing for C. P. Fest's Air Ship - NARA - 6277655.jpg|thumb|400px|Archival copy, stamped "98 Pneumatics" at the top left]]
Buoyancy from heated gas; systems of tubes for altering gas density in balloon, control elevation
* Tech class [[CPC B64B1/00]] Lighter-than-air aircraft
* Inventor location: Philadelphia, Philadelphia county, PA (FIPSloc=42101, imputed by [[HistPat]]))
=== Sources ===
{{USpatentsources|263397}}
* [[Short's DB]]
* {{IUParchive}}
{{Patent
|Year filed=1882
|Year granted=1882
|Office=US
|Patent number=263397
|Inventors=Charles P. Fest
|Inventor country=US
|Applicant person=Charles P. Fest
|Applicant firm=
|Applicant type=INDIV
|Applicant is inventor=1
|Original title=Air-Ship
|English title=Air ship
|Tech field=LTA; whole; frame
|Filing date=June 26, 1882
|Full specification filed date=
|Application number=
|Grant date=August 29, 1882
|Granted=1
|Publication date=
|Supplementary to patent=
|Related to aircraft=1
|Serial number=
|Patent agent=Paul Goepel
|Assigned to=
|National tech categories=US 98; USPC 244/30
|IPCs=IPC B64B1/00
|CPCs=CPC B64B1/00
|Family year=1882
|First filing=1
|Cites these patents=
|Citations from after 1930=0
|Application ID=
|INPADOC family ID=
|Number of text pages=2
|Number of diagram pages=2
|Number of figures=7
|Number of claims=4
}}
[[Category: US 98]]