Heintz & Kaufman Ltd
Heintz & KActive Patents
0
Total Holdings
15
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2079134A | Oscillating radio receiver | Expired / Lapsed | 1933-11-13 | 1937-05-04 | 0 | Details |
| US2034434A | Basing cement | Expired / Lapsed | 1934-12-17 | 1936-03-17 | 0 | Details |
| US2026892A | High frequency generator | Expired / Lapsed | 1931-11-11 | 1936-01-07 | 0 | Details |
| US2005257A | Vacuum tube grid | Expired / Lapsed | 1933-04-26 | 1935-06-18 | 0 | Details |
| US1994767A | Method of making inductances | Expired / Lapsed | 1934-06-27 | 1935-03-19 | 0 | Details |
| US1994760A | Oscillation system | Expired / Lapsed | 1933-11-07 | 1935-03-19 | 0 | Details |
| US1990733A | Frequency multiplying system | Expired / Lapsed | 1931-11-11 | 1935-02-12 | 0 | Details |
| US1975175A | Magneto field member | Expired / Lapsed | 1932-11-05 | 1934-10-02 | 0 | Details |
| US1958753A | Stationary armature construction | Expired / Lapsed | 1932-12-09 | 1934-05-15 | 0 | Details |
| US1958043A | Magneto field member | Expired / Lapsed | 1932-12-09 | 1934-05-08 | 0 | Details |
| US1955292A | Method of making engine cylinders | Expired / Lapsed | 1933-05-27 | 1934-04-17 | 0 | Details |
| US1950754A | Magneto | Expired / Lapsed | 1932-12-09 | 1934-03-13 | 0 | Details |
| US1924462A | Portable current supply | Expired / Lapsed | 1932-10-04 | 1933-08-29 | 0 | Details |
| US1902235A | Radioreceiver power supply | Expired / Lapsed | 1930-05-06 | 1933-03-21 | 0 | Details |
| US1902234A | Receiver for continuous waves | Expired / Lapsed | 1930-03-12 | 1933-03-21 | 0 | Details |