Patent GB-1908-21754

Patent GB-1908-21754 Original Diagram

Screw propeller for aerial or submarine engines; not configured to generate lift, apparently

Patent family descending from Patent FR-1907-382895

• Patent FR-1907-382895 (English title: Automatic propeller, National tech categories: FR 6.2)
• Patent FR-1907-382895.9756 (English title: Supplementary patent for propulsion designed for aerial or underwater navigation, Supplementary to patent: Patent FR-1907-382895, National tech categories: FR 6.2)
• Patent GB-1908-21754 (English title: Propeller, Supplementary to patent: Patent FR-1907-382895)
• Patent GB-1909-21754.19862 (English title: Improvements in propellers, Supplementary to patent: Patent GB-1908-21754 • Patent FR-1907-382895)
• Patent GB-1909-91986 (English title: Improvements in propellers, Supplementary to patent: Patent GB-1908-21754 • Patent FR-1907-382895)

• Inventor location: 70 Boulevard Notre-Dame, Marseilles, France ; self-described Gentleman

Sources

• Neilson, 1910, Aeroplane Patents, p76
• Espacenet
• Original via Espacenet

Year filed	1908
Year granted	1909
Office	GB
Patent number	21754
Inventors	Daniel-Alexis-Léopold Grosclaude
Inventor country	FR
Applicant person	Daniel-Alexis-Léopold Grosclaude
Applicant firm
Applicant type	INDIV
Applicant is inventor?	Yes
Original title	Propeller
English title	Propeller
Tech fields	propeller, marine
Filing date	October 14, 1908
Full specification filed date	October 14, 1908
Application number
Grant date	May 13, 1909
Granted?	Yes
Publication date
Supplementary to patent	Patent FR-1907-382895
Related to aircraft?	Yes
Serial number
Patent agent	W. P. Thompson & Co.
Assigned to
National tech categories
IPCs
CPCs
Family year	1907
First filing?	No
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages	2
Number of diagram pages	1
Number of figures	1
Number of claims