Constantine; Richard Steven
Patent Applications and Registrations
Patent applications and USPTO patent grants for Constantine; Richard Steven.The latest application filed is for "dual drive pencil sharpener".
- Constantine; Richard Steven - Monroe CT
- Constantine; Richard Steven - Milford CT
| Patent | Date |
|---|---|
| Knife Grant D811,847 - Constantine , et al. March 6, 2 | 2018-03-06 |
| Knife Grant D810,228 - Constantine , et al. February 13, 2 | 2018-02-13 |
| Knife Grant D810,227 - Constantine , et al. February 13, 2 | 2018-02-13 |
| Folding knife Grant D807,723 - Constantine , et al. January 16, 2 | 2018-01-16 |
| Folding knife Grant D807,143 - Constantine , et al. January 9, 2 | 2018-01-09 |
| Putty knife Grant D733,517 - Constantine July 7, 2 | 2015-07-07 |
| Dual drive pencil sharpener Grant 8,726,527 - Constantine , et al. May 20, 2 | 2014-05-20 |
| Knife having a reversible carriage Grant 8,689,450 - Constantine , et al. April 8, 2 | 2014-04-08 |
| Cutting implement with cartridge Grant 8,677,630 - Constantine , et al. March 25, 2 | 2014-03-25 |
| Dual Drive Pencil Sharpener App 20130174429 - Constantine; Richard Steven ; et al. | 2013-07-11 |
| Knife Having a Reversible Carriage App 20120272529 - Constantine; Richard Steven ; et al. | 2012-11-01 |
| Cutting Implement with Cartridge App 20110119928 - Constantine; Richard Steven ; et al. | 2011-05-26 |
| Cutting implement with cartridge Grant 7,886,445 - Constantine , et al. February 15, 2 | 2011-02-15 |
| Utility knife Grant D587,553 - Constantine , et al. March 3, 2 | 2009-03-03 |
| Cutting implement with cartridge App 20070227012 - Constantine; Richard Steven ; et al. | 2007-10-04 |
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