Casberg; John M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Casberg; John M..The latest application filed is for "partially shell encased swimming pool chemical tablet".
- Casberg; John M. - Cheshire CT
| Patent | Date |
|---|---|
| Partially shell encased swimming pool chemical tablet Grant D335,704 - Casberg May 18, 1 | 1993-05-18 |
| Chemical tablet with central hole and partially exposed top and bottom Grant 5,137,731 - Casberg August 11, 1 | 1992-08-11 |
| Container for swimming pool chemical tablets for use in skimmers, floaters or feeders Grant D328,333 - Casberg July 28, 1 | 1992-07-28 |
| Shell encased pool chemical tablet Grant D325,619 - Casberg April 21, 1 | 1992-04-21 |
| Chlorine dispenser for swimming pools Grant D309,493 - Casberg July 24, 1 | 1990-07-24 |
| Method of chlorinating a swimming pool Grant 4,923,618 - Casberg , et al. May 8, 1 | 1990-05-08 |
| Encased pool chemical tablet with domed ends Grant 4,876,003 - Casberg October 24, 1 | 1989-10-24 |
| Swimming pool chemical tablet Grant D283,649 - Casberg April 29, 1 | 1986-04-29 |
| Briquets of hydrated calcium hypochlorite Grant 4,349,493 - Casberg , et al. September 14, 1 | 1982-09-14 |
| Water treatment chemical dispenser with control tube Grant 4,208,376 - Sangster , et al. June 17, 1 | 1980-06-17 |
| Method of inhibiting scale formation Grant 4,087,360 - Faust , et al. May 2, 1 | 1978-05-02 |
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