Patent GB-1911-29012

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This original document is fairly extraordinary, or at least unusually and immediately indicative, of British administrative culture, that is, peculiarities, in terms of multiple patent numbers, with nicely outlined filing dates and so forth, being displayed right on the first page of “one patent”. Multiple patent numbers, as well may see them, constitute the “provisional specifications” leading up to ONE “complete specification”.

So, whereas in other British cases we have seen a patent, with its own original document, and its own searchable record on Espacenet, a patent calling itself an addition to some other patent, here we have “No. 29,012 ... A.D. 1911” seemingly as the first of four “provisional specifications”. We have “No. 2664, A.D.” as the second, “No. 15,938, A.D. 1912” as the third, and “No. 15,939, A.D. 1912” as the forth. The titles vary between them. As always in the case of British patents, the filing year is displayed in a manner as if it is of a piece with the patent number.

This means that various non-British references to British filing dates will not be directly associated with “29012” or with “191129012”, as such, but with other patent numbers, outlined on the one document.

The design is for a "hydro-aëronautical machine" (these are generally called hydroaeroplanes, seaplanes, etc.) with "splayed or inclined hydropeds whereon are mounted a number of hydroplanes of the non-buoyant type."


  • Original patent document and bibliography entry on espacenet
  • on google patents
  • Inventor/applicant person location: Holme, Kilmeston, Alresford, the County of Hants, England
  • Inventor/applicant person occupation: Lieutenant in His Majesty's Navy
  • Applicant firm more complete identification: The British and Colonial Aëroplane Company, Limited, Manufacturers of Aëronautical Apparatus
  • Applicant firm location: Clare Street House, the County of Bristol, England

Patent family descending from Patent GB-1911-29012

Year filed 1911
Year granted 1913
Office GB
Patent number 29012
Inventors Charles Denniston Burney
Inventor country GB
Applicant person Charles Denniston Burney
Applicant firm British and Colonial Aeroplane Co.
Applicant type COMPANY + INDIV
Applicant is inventor? Yes
Original title Improvements in and in connection with Aeronautical Apparatus
English title Improvements in and in connection with Aeronautical Apparatus
Tech fields hydroaeroplane, airplane, design, frame, construction, propellers, rudder, wings, fuselage, chassis
Filing date 1911/12/23
Full specification filed date 1912/07/22
Application number 191129012D
Grant date 1912/03/25
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent G. G. M. Hardingham
Assigned to
National tech categories
IPCs IPC B64C35/00
CPCs CPC B64F2700/6261, IPC B64C35/00
Family year 1911
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 23626660
INPADOC family ID 11115927
Number of text pages 7
Number of diagram pages 4
Number of figures 4
Number of claims 11