Patent US-1918-1339886
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Edge protector on propeller blades (can't see the unexpected invention yet)
- Tech class CPC B64C11/205: Constructional features for protecting blades, e.g. coating
- Inventor location: Baltimore, Baltimore county; MD (FIPSloc=24510, imputed from HistPat)
Sources
- Patent 1339886 document and bibliographic info on espacenet
- Patent 1339886 at google patents
| Year filed | 1918 |
|---|---|
| Year granted | 1920 |
| Office | US |
| Patent number | 1339886 |
| Inventors | Spencer Heath |
| Inventor country | US |
| Inventor location | |
| Applicant person | Spencer Heath |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Protector for propeller-blades |
| English title | Protector for propeller-blades |
| Tech fields | propellers |
| Filing date | 1918-09-18 |
| Full specification filed date | |
| Application number | 25469218 |
| Grant date | 1920-05-11 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 254692 |
| Patent agent | Steven B. Preaton |
| Assigned to | |
| National tech categories | |
| IPCs | IPC B64C11/20 |
| CPCs | CPC B64C11/205 |
| Family year | 1918 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 2 |
| Application ID | 49045033 |
| INPADOC family ID | 44604914 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 3 |
| Number of claims | 10 |
