Difference between revisions of "Patent GB-1908-17877"

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({{GBpatentsources|190817877A}}, occupation and location data, drawn from this patent itself, and this patent also being a match to Patent CA-1908-115381, more in tech fields)
 
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This patent does not appear to refer to any Swedish or Mexican predecessors, but realistically it must be a child patent.  We need to trace that, presumably by comparing the diagrams. [[Patent DE-1908-244821]] is a match, filed three days later, and so is [[Patent CA-1908-115381]], filed one month later. This patent is stamped "[Second Edition.]"
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* Inventor location: No. 1040, Calle Tolsa, City of Mexico, Mexican Republic
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* Inventor occupation: Physician on the Staff of the General Hospital
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=== Sources ===
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* {{Neilson1910|76|p76}}
 +
{{GBpatentsources|190817877A}}
 
{{Patent
 
{{Patent
|Year granted=1908
+
|Year filed=1908
|Office=GB
+
|Year granted=1909
 +
|Office=MX
 
|Patent number=17877
 
|Patent number=17877
|Inventors=F.W. DUFWA
+
|Inventors=Frederick William Dufwa
 +
|Inventor country=MX
 +
|Inventor location=México, D.F.
 +
|Applicant person=Frederick William Dufwa
 +
|Applicant firm=
 +
|Applicant type=INDIV
 
|Applicant is inventor=1
 
|Applicant is inventor=1
 +
|Original title=Improvements relating to flying Machines
 +
|English title=Improvements relating to flying Machines
 +
|Tech fields=rudder; HTA; biplane
 +
|Filing date=1908-08-25
 +
|Full specification filed date=
 +
|Application number=
 +
|Grant date=1909-03-25
 
|Granted=1
 
|Granted=1
|Related to aircraft=Yes
+
|Publication date=
 +
|Supplementary to patent=Not identified yet
 +
|Related to aircraft=1
 +
|Serial number=
 +
|Patent agent=Haseltine, Lake & Co.
 +
|Assigned to=
 +
|National tech categories=
 +
|IPCs=
 +
|CPCs=
 
|Family year=1908
 
|Family year=1908
 +
|First filing=0
 +
|Cites these patents=
 +
|Citations from after 1930=
 +
|Application ID=
 +
|INPADOC family ID=
 +
|Number of text pages=6
 +
|Number of diagram pages=2
 +
|Number of figures=7
 +
|Number of claims=14
 
}}
 
}}
; Sources: N1910, p76 ; http://espacenet.com/searchResults?query=gb190817877a [http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&CC=BR&NR=17877 espacenet]    Inventor location (imputed):
 

Latest revision as of 10:56, 11 January 2025

This patent does not appear to refer to any Swedish or Mexican predecessors, but realistically it must be a child patent. We need to trace that, presumably by comparing the diagrams. Patent DE-1908-244821 is a match, filed three days later, and so is Patent CA-1908-115381, filed one month later. This patent is stamped "[Second Edition.]"

  • Inventor location: No. 1040, Calle Tolsa, City of Mexico, Mexican Republic
  • Inventor occupation: Physician on the Staff of the General Hospital

Sources


Year filed 1908
Year granted 1909
Office MX
Patent number 17877
Inventors Frederick William Dufwa
Inventor country MX
Inventor location México, D.F.
Applicant person Frederick William Dufwa
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements relating to flying Machines
English title Improvements relating to flying Machines
Tech fields rudder, HTA, biplane
Filing date 1908-08-25
Full specification filed date
Application number
Grant date 1909-03-25
Granted? 1
Publication date
Supplementary to patent Not identified yet
Related to aircraft? 1
Serial number
Patent agent Haseltine, Lake & Co.
Assigned to
National tech categories
IPCs
CPCs
Family year 1908
First filing? 0
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 6
Number of diagram pages 2
Number of figures 7
Number of claims 14