| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'CHAPMAN') AND (first_name = 'James R.') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Last Name is 'CHAPMAN'; First Name is 'James R.';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1896 | ||||||
| U | 556,971 | March 24, 1896 | Insulated Support for Contact Rails Third rail insulator with top and side brackets (see reissue 11,613 on 6-22-1897) |
HANSON, Augustus CHAPMAN, James R. |
Third Rail | |
| 1897 | ||||||
| R | 11,613 | June 22, 1897 | Insulator Support for Contact Rails Third rail insulator with top and side brackets (reissue of 556,971) |
HANSON, Augustus CHAPMAN, James R. |
Third Rail | General Electric Co. |
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