Patent US-1847-5219

Improvement on the horizontal shifting paddle-wheel. Paragraph 1 of the patent says it's an improvement on his own patented invention of June-9, 1843. Although formal priority may not be related to that prior patent, we'll call it a supplementary patent here in order to maintain parallelism with the later treaty standards.

• "Filing date" here is the date the inventor is recorded on page 2 as having signed it.
• Inventor location: Windsor, Windsor county, VT (FIPSloc=50027, imputed by HistPat)

Tech classes

• CPC B64C11/00: Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
  • CPC B64C11/006: Paddle wheels
• CPC B63H1/04: Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction

Sources

• Patent 5219 document and bibliographic info on espacenet
• Patent 5219 at google patents

Year filed	1847
Year granted	1847
Office	US
Patent number	5219
Inventors	Horace Everett
Inventor country	US
Inventor location
Applicant person	Horace Everett
Applicant firm
Applicant type	INDIV
Applicant is inventor?	1
Original title	Improvement in propellers for vessels
English title	Improvement in propellers for vessels
Tech fields	marine propeller
Filing date	1847-07-26
Full specification filed date
Application number
Grant date	1847-08-07
Granted?	1
Publication date
Supplementary to patent	Patent US-June-9-1843
Related to aircraft?	1
Serial number
Patent agent
Assigned to
National tech categories	USPC 416/116
IPCs	IPC A01H5/00
CPCs	CPC B64C11/006, CPC B63H1/04
Family year	1843
First filing?	0
Cites these patents
Citations from after 1930
Application ID	45389903
INPADOC family ID
Number of text pages	2
Number of diagram pages	1
Number of figures	1
Number of claims	1