Patent US-1883-271957
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- CPC B64C1/1407 Doors; surrounding frames
- CPC B24C9/00 Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- Inventor location: Girard, Macoupin county, IL (FIPSloc=17117, imputed by HistPat)
Sources
- Patent 271957 document and bibliographic info on espacenet
- Patent 271957 at google patents
| Year filed | 1882 |
|---|---|
| Year granted | 1883 |
| Office | US |
| Patent number | 271957 |
| Inventors | Robert J. Walker |
| Inventor country | US |
| Applicant person | |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Grain-door |
| English title | Grain-door |
| Tech fields | |
| Filing date | June 28, 1882 |
| Full specification filed date | |
| Application number | |
| Grant date | February 6, 1883 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | No |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B24C9/00, CPC B64C1/1407 |
| Family year | 1883 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 46023101 |
| INPADOC family ID | |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | |
| Number of claims | 7 |
