Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US5937857A | Backpressure-modulating cartridge for breathing mask | Direction Générale de l'Armement | Expired / Lapsed | 1997-05-09 | 1999-08-17 | 2017-05-09 | 0.0 yrs | 13 | |
| US4317059A | Acceleration and temperature compensated piezoelectric bi-resonator | Direction Générale de l'Armement | Expired / Lapsed | 1979-09-26 | 1982-02-23 | 1999-09-26 | 0.0 yrs | 3 | |
| US4171908A | Automatic two wavelength photoelasticimeter | Direction Générale de l'Armement | Expired / Lapsed | 1977-03-29 | 1979-10-23 | 1997-03-29 | 0.0 yrs | 9 | |
| US3854378A | Device for stabilization of an oscillating mass | Direction Générale de l'Armement | Expired / Lapsed | 1973-07-09 | 1974-12-17 | 1993-07-09 | 0.0 yrs | 5 |