Perry; Roger L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Perry; Roger L..The latest application filed is for "environmental test apparatus with partition-isolated thermal chamber".
- Perry; Roger L. - Franksville WI
- Perry; Roger L. - Lynnfield MA
- Perry; Roger L. - Lynnfield Center MA
- Perry; Roger L. - Lynnefield Center MA
| Patent | Date |
|---|---|
| Environmental test apparatus with partition-isolated thermal chamber Grant 6,005,404 - Cochran , et al. December 21, 1 | 1999-12-21 |
| Electrical transfer switch and related method Grant 5,773,983 - Cochran , et al. June 30, 1 | 1998-06-30 |
| Razor handle Grant 4,083,104 - Nissen , et al. April 11, 1 | 1978-04-11 |
| Razor with rotatably mounted shaving unit Grant 3,950,849 - Perry April 20, 1 | 1976-04-20 |
| Disposable blade unit Grant 3,938,250 - Perry February 17, 1 | 1976-02-17 |
| Shaving system with pivotal head Grant 3,938,247 - Carbonell , et al. February 17, 1 | 1976-02-17 |
| Safety razor Grant 3,892,036 - Perry July 1, 1 | 1975-07-01 |
| Shaving system with a fixed edge between the blade edge and the guard Grant 3,871,073 - Nissen , et al. March 18, 1 | 1975-03-18 |
| Razor with movable guard and concurrently movable blade platform Grant 3,871,077 - Nissen , et al. March 18, 1 | 1975-03-18 |
| Plural Edge Shaving System Grant 3,863,340 - Perry February 4, 1 | 1975-02-04 |
| Razor Blade Assembly Grant 3,842,499 - Dorion, Jr. , et al. October 22, 1 | 1974-10-22 |
| Razor Blade Assembly Grant 3,832,774 - Perry * September 3, 1 | 1974-09-03 |
| Blade Unit Grant 3,810,305 - Perry May 14, 1 | 1974-05-14 |
| Handle Grant 3,795,979 - Perry March 12, 1 | 1974-03-12 |
| Razor Handle Grant 3,768,162 - Perry October 30, 1 | 1973-10-30 |
| Razor Blade Assembly Grant 3,703,764 - Perry November 28, 1 | 1972-11-28 |
| Safety Razor Grant 3,667,121 - Dorion, Jr. , et al. June 6, 1 | 1972-06-06 |
| Razor With Pivotally Mounted Safety Guard Grant 3,657,811 - Nissen , et al. April 25, 1 | 1972-04-25 |
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