Hetherington; Michael W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hetherington; Michael W..The latest application filed is for "keypad for a security system".
- Hetherington; Michael W. - Holt CA
- Hetherington; Michael W. - Mount Albert CA
- Hetherington; Michael W. - Cedar Valley CA
| Patent | Date |
|---|---|
| Keypad for a security system Grant D357,638 - Hetherington , et al. April 25, 1 | 1995-04-25 |
| Dishwasher detergent dispenser Grant D352,578 - Mooney , et al. November 15, 1 | 1994-11-15 |
| Self-cooling fluid container Grant 5,214,933 - Aitchison , et al. June 1, 1 | 1993-06-01 |
| Surface cleaning apparatus Grant 4,798,613 - Hetherington , et al. January 17, 1 | 1989-01-17 |
| Combined vacuum cleaner and scrubbing brush Grant D295,566 - Hetherington , et al. May 3, 1 | 1988-05-03 |
| Portable vacuum cleaner Grant D291,376 - Hetherington August 11, 1 | 1987-08-11 |
| Electrical outlet assembly Grant 4,684,186 - Hetherington August 4, 1 | 1987-08-04 |
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