Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6275584 | Telephone housing with large capacity vault | — | 2001-08-14 |
| 6047065 | Coin receptacle cover for pay telephones | — | 2000-04-04 |
| 5887053 | Coin return anti-stuffing apparatus and method | — | 1999-03-23 |
| 5709294 | Non-jamming coin chute trigger assembly for pay telephones | — | 1998-01-20 |
| 5676232 | Coin chute trigger assembly for pay telephones with microswitches | — | 1997-10-14 |
| 5193113 | Protective plate for paystation anti-stuffing device | — | 1993-03-09 |
| 5155765 | Telephone paystation lower housing armor | — | 1992-10-13 |
| 5134654 | High security upper housing shield for telephone paystation | — | 1992-07-28 |
| 5064116 | Coin hopper relay | Timothy M. Stanford, Charles J. Bass | 1991-11-12 |
| 5058966 | Vault liner for use in coin telephones | — | 1991-10-22 |
| 4942748 | Security mechanism for telephone paystations | — | 1990-07-24 |
| 4940296 | Plastic housing for telephone paystation | — | 1990-07-10 |
| 4938547 | Simplified metal housing for telephone paystation | — | 1990-07-03 |
| 4852373 | Lock protector assembly | — | 1989-08-01 |
| 4815123 | Coin-operated telephone apparatus | — | 1989-03-21 |
| 4809319 | Coin-operated telephone apparatus | — | 1989-02-28 |
| 4617428 | Telephone base adapted to facilitate both desk and wall mounting of telephone instrument | Babulal V. Gala | 1986-10-14 |
| 4386690 | Coin relay selector card | — | 1983-06-07 |