| Patent No. |
Title |
Status |
Filing Date |
Grant Date |
Claims |
Actions |
|
US2100785A
|
Ridge ventilator |
Expired / Lapsed
|
1937-02-09 |
1937-11-30 |
0 |
Details
|
|
US1923788A
|
Valve |
Expired / Lapsed
|
1930-05-12 |
1933-08-22 |
0 |
Details
|
|
US1787790A
|
Steam desuperheater |
Expired / Lapsed
|
1929-03-29 |
1931-01-06 |
0 |
Details
|
|
US1525249A
|
Separator |
Expired / Lapsed
|
1921-03-30 |
1925-02-03 |
0 |
Details
|