Friedman; Michael N.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Friedman; Michael N..The latest application filed is for "spiral binder with locking element".
- Friedman; Michael N. - Centerport NY
| Patent | Date |
|---|---|
| Spiral binder with locking element Grant 6,045,285 - Friedman April 4, 2 | 2000-04-04 |
| Reusable/refillable spiral binder Grant 5,417,508 - Friedman May 23, 1 | 1995-05-23 |
| Combined cover and storage compartment for a ring binder Grant 5,042,841 - Friedman August 27, 1 | 1991-08-27 |
| Indexing systems Grant 4,863,194 - Friedman September 5, 1 | 1989-09-05 |
| Loose leaf holder for use with ring binders Grant 4,795,287 - Friedman January 3, 1 | 1989-01-03 |
| Binder for perforated sheets or the like Grant 4,374,627 - Friedman February 22, 1 | 1983-02-22 |
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