Patent GB-1900-13241

• Possibly content the same as: https://patents.google.com/patent/US697403

Sources

• Neilson (1910), p73 (page at Hathitrust)
• Original patent document and bibliography entry on espacenet
• Inventor location: Both men were addressed at 40, New Bond Street, County of London
• Inventor occupations: Groombridge is described simply as Inventor, here, and South is described as “F.R.C.V.S.”, which we have reason to believe has to do with Veterinary Science. Patent HU-1901-25758 has him as a Veterinarian.

Patent family descending from Patent GB-1900-13241

• Patent GB-1900-13241 (English title: Improvements in Propellers for Use with Flying-machines, Balloons, and the like)
• Patent DE-1900-137242 (English title: Reversed wing assembly for flying machines, Supplementary to patent: Patent GB-1900-13241)
• Patent HU-1901-25758 (English title: Screw for airships, Supplementary to patent: Patent GB-1900-13241, National tech categories: HU V/h)

Year filed	1900
Year granted	1901
Office	GB
Patent number	13241
Inventors	Charles Groombridge, William Alfred South
Inventor country	GB
Applicant person	William Alfred South, Charles Groombridge
Applicant firm
Applicant type	INDIV
Applicant is inventor?	Yes
Original title	Improvements in Propellers for Use with Flying-machines, Balloons, and the like
English title	Improvements in Propellers for Use with Flying-machines, Balloons, and the like
Tech fields	Propellers, Propulsion, Balloons, Airship, Subsystem, Design
Filing date	1900/07/23
Full specification filed date	1901/04/23
Application number
Grant date	1901/10/23
Granted?	Yes
Publication date
Supplementary to patent
Related to aircraft?	Yes
Serial number
Patent agent	Ernest de Pass
Assigned to
National tech categories
IPCs
CPCs
Family year	1900
First filing?	Yes
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages	6
Number of diagram pages	3
Number of figures	11
Number of claims	8