Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4627810 | Collapsible core | — | 1986-12-09 |
| 4533312 | Simplified collapsible mold core | — | 1985-08-06 |
| 4512493 | Molded bucket and lid having high stack strength | — | 1985-04-23 |
| 4487564 | Split mold lock | — | 1984-12-11 |
| 4476083 | Pivot mold assembly method | — | 1984-10-09 |
| 4441622 | Threaded port and plug having access apertures | — | 1984-04-10 |
| 4420093 | Molded bucket and lid having high stack strength | — | 1983-12-13 |
| 4380305 | Manually removable seal for buckets and cans | — | 1983-04-19 |
| 4380422 | Longitudinally expansible and contractible hydrostatic mold gate | — | 1983-04-19 |
| 4375948 | Plastic bucket defining annular inwardly projecting ridge and method | — | 1983-03-08 |
| 4308970 | Plastic bucket defining annular inwardly projecting ridge | — | 1982-01-05 |
| 4289468 | Hydrostatic mold gate | — | 1981-09-15 |
| 4289473 | Mold gate permitting the introduction of stiff molding compound into a mold chamber | — | 1981-09-15 |
| 4286766 | Collapsible mold core | — | 1981-09-01 |
| 4280976 | Simultaneously molded threaded port and plug | — | 1981-07-28 |
| 4210620 | Pivot assembly mold method | — | 1980-07-01 |
| 4210258 | Seal for plastic buckets and cans | — | 1980-07-01 |