Halkey Roberts Corp
Halkey RobActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US5284475A | Luer valve adapter with expandable end | Expired / Lapsed | 1993-07-15 | 1994-02-08 | 5 | Details |
| US4776369A | Check valve having snap-on clamping sleeve | Expired / Lapsed | 1987-02-24 | 1988-10-11 | 12 | Details |
| US4617015A | Visual pressure indicator for endotracheal cuff | Expired / Lapsed | 1984-08-10 | 1986-10-14 | 7 | Details |
| US4602655A | Self-retaining check valve and mounting therefor | Expired / Lapsed | 1982-12-16 | 1986-07-29 | 4 | Details |
| US3192949A | Spring biased check valve | Expired / Lapsed | 1962-07-10 | 1965-07-06 | 2 | Details |
| US3189223A | Liquid dispensing device | Expired / Lapsed | 1964-05-18 | 1965-06-15 | 2 | Details |
| US3174501A | Valve and valve mounting | Expired / Lapsed | 1962-09-07 | 1965-03-23 | 2 | Details |
| US2777490A | Closure device for flexible-walled hollow articles | Expired / Lapsed | 1955-10-26 | 1957-01-15 | 0 | Details |