Patent US-1877-199549

Agent looks like "C.W. Park[s]" but no match found in 1883 roster.

• Tech class CPC B64C11/06: Blade mountings for variable-pitch blades
• Inventor location: Middletown, Middlesex county, CT (FIPSloc=9007)

A well-known engineer and surveyor and politician named Edwin J. Hulbert existed from 1829-1910, and it seems like it would have to be our guy, but he lived always in Michigan. So it probably isn't our guy. [1]; w:d:Q111157422; [2]; [3]; [4]

Sources

• Patent 199549 document and bibliographic info on espacenet
• Patent 199549 at google patents

Year filed	1877
Year granted	1878
Office	US
Patent number	199549
Inventors	Edwin J. Hulbert
Inventor country	US
Inventor location	Connecticut
Applicant person	Edwin J. Hulbert
Applicant firm
Applicant type	INDIV
Applicant is inventor?	1
Original title	Improvement in Screw-Propellers
English title	Screw-Propellers
Tech fields	propeller, subsystem
Filing date	1877/07/12
Full specification filed date
Application number
Grant date	1878/01/22
Granted?	1
Publication date
Supplementary to patent
Related to aircraft?	Partially
Serial number
Patent agent	C. W. Parks
Assigned to
National tech categories
IPCs
CPCs	CPC B64C11/06
Family year	1878
First filing?	1
Cites these patents
Citations from after 1930	1
Application ID	45898213
INPADOC family ID
Number of text pages	2
Number of diagram pages	1
Number of figures	5
Number of claims	4