Sheldon; Dunstan P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sheldon; Dunstan P..The latest application filed is for "mobile check-in station and method of use".
- Sheldon; Dunstan P. - Altadena CA
| Patent | Date |
|---|---|
| Mobile check-in station and method of use Grant 6,112,989 - Sheldon September 5, 2 | 2000-09-05 |
| Ticketless travel card and method of use Grant 5,504,321 - Sheldon April 2, 1 | 1996-04-02 |
| Composite ticket processing unit Grant 5,010,240 - Sheldon April 23, 1 | 1991-04-23 |
| Construction for mounting an ink ribbon cassette in a heat transferable line printer Grant 4,944,619 - Suzuki , et al. July 31, 1 | 1990-07-31 |
| Multiple document parallel printing apparatus Grant 4,879,268 - Sheldon November 7, 1 | 1989-11-07 |
| Form printer Grant 4,744,681 - Sheldon May 17, 1 | 1988-05-17 |
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