Patent ES-1919-71897

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As usual, Spanish data on Espacenet is quite patchy. Experience has taught us that the priority date purported in the inventor's results column is more than likely the filing date, of the patent in Spain. This is fairly peculiar to Spanish data. The purported publication date is likely the date granted. This is less peculiar. British, data, on Espacenet, follows this same pattern, while the publication date on French patent results, is usually the actual publication date shown on the original, as differentiated from the date of acceptance or granting.

Sources

Patent family descending from Patent ES-1919-71897

  • Patent ES-1919-71897 (English title: Improvements introduced in depots(possibly fuel tanks) such as aircraft)


Year filed 1919
Year granted
Office ES
Patent number 71897
Inventors René Caudron
Inventor country FR
Applicant person René Caudron
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Perfeccionamientos introducidos en los depósitos tales como los de aeronaves
English title Improvements introduced in depots(possibly fuel tanks) such as aircraft
Tech fields airplane, design, construction, fueling
Filing date 1919-12-17
Full specification filed date
Application number
Grant date 1920-03-16
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? Yes
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Assigned to
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First filing?
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
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