Patent FR-1912-424466.16588
This is a certificate of addition making explicit reference to its French parent patent, Patent FR-1910-424466, filed 1910-12-29, and to an Austrian patent filed 1911-09-03. This latter likely refers to an earlier Austrian patent we have designated as Patent AT-1909-12-31 Vigilio Baldo. There is a roughly analogous international pattern here, though the French semantic distinction between per se “brevet” and per se “certificat d'addition” seems to be unique. The French “certificat d'addition” always seems to be legally speaking, internationally, equal to a “patent”.
Balso's Austrian patents may be missing from Espacenet, but we are drilling into the data by French and British and perhaps other patents onhand.
French patent agent “J. Gillot” is quite likely a Joseph Gillot, barely as yet entering into our data.
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
- Inventor location: Austria
| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 16588 |
| Inventors | Vigilio Baldo |
| Inventor country | AT |
| Applicant person | Vigilio Baldo |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Système moto-propulseur de sécurité pour aéroplanes avec changement de vitesse |
| English title | Secure propeller system for aeroplanes, with changing speeds |
| Tech fields | Airplane, Propellers, Safety, Speed |
| Filing date | 1912/08/30 |
| Full specification filed date | |
| Application number | |
| Grant date | 1912/12/24 |
| Granted? | Yes |
| Publication date | 1913/02/28 |
| Supplementary to patent | Patent FR-1910-424466, Patent AT-1911-09-03 Vigilio Baldo, Patent AT-1909-12-31 Vigilio Baldo |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Joseph Gillot |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64D27/00 |
| CPCs | CPC B64D2700/62763 |
| Family year | 1909 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 4 |
| Number of diagram pages | 1 |
| Number of figures | 10 |
| Number of claims | 7 |
