Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278180 | Container closure with breakable annular ring | — | 1981-07-14 |
| 4253459 | Additive transfer unit with stabilized sealing means | — | 1981-03-03 |
| 4241840 | Safety closure assembly with a sheet metal overcap | — | 1980-12-30 |
| 4209102 | Linerless plastic closure | Lloyd G. Dunn | 1980-06-24 |
| 4200100 | Additive transfer unit with piercing member having a penetratable protective tip | — | 1980-04-29 |