Patent US-1918-1452641

Sources

• Patent 1452641 document and bibliographic info on espacenet
• Patent 1452641 at google patents
• Inventor location: Dayton, Ohio (according to the original patent document); Hamilton county, OH (FIPSloc=39061), Montgomery county, OH (FIPSloc=39113)
• Witnesses as shown on the final text page: F. O. Clements and Thomas Midgley, Jr. As usual we are presented with handwriting legibility challenges vis-à-vis witnesses as shown on the document challenges. Witnesses are not always crucial, though we do see recurring names, along with sporadic hints at international or purely American corporate phenomena by way of these. In the case of this patent the names of the patent attorneys are legible, and represent a firm we already have on hand.

The inventor, James M. H. Jacobs, is the assignor, “BY MESNE ASSIGNMENTS”, to Dayton-Wright Company, of Dayton, Ohio, and this latter is a Corporation of Delaware.

Year filed	1918
Year granted	1923
Office	US
Patent number	1452641
Inventors	James M. H. Jacobs
Inventor country	US
Applicant person
Applicant firm	Dayton-Wright Company
Applicant type	COMPANY
Applicant is inventor?	No
Original title	Aeroplane wing
English title	Aeroplane wing
Tech fields	airplane, wings
Filing date	1918/09/20
Full specification filed date
Application number	25495218
Grant date	1923/04/24
Granted?	Yes
Publication date
Supplementary to patent
Related to aircraft?	Yes
Serial number	254952
Patent agent	Kerr, Page, Cooper & Hayward
Assigned to	Dayton-Wright Company
National tech categories
IPCs	IPC B64C3/00
CPCs	CPC B64C3/00, CPC B64C2700/6233
Family year	1918
First filing?	Yes
Cites these patents
Citations from after 1930
Application ID	49047213
INPADOC family ID	44606312
Number of text pages	3
Number of diagram pages	2
Number of figures	7
Number of claims	6