Olmstead; Charles H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Olmstead; Charles H..The latest application filed is for "optical switches".
- Olmstead; Charles H. - Acton MA
- Olmstead; Charles H. - Worcester MA
| Patent | Date |
|---|---|
| Optical switches Grant 5,408,548 - Olmstead April 18, 1 | 1995-04-18 |
| Optical switches Grant 5,283,843 - Olmstead February 1, 1 | 1994-02-01 |
| Optical communication cable Grant 4,911,525 - Hicks , et al. March 27, 1 | 1990-03-27 |
| Security screw Grant D255,541 - Simone , et al. June 24, 1 | 1980-06-24 |
| Security screw Grant 4,171,662 - Simone , et al. October 23, 1 | 1979-10-23 |
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