Armco Inc
Armco IncActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3179022A | Swab cup for oil well pump assemblies | Expired / Lapsed | 1963-12-23 | 1965-04-20 | 2 | Details |
| US3171489A | Wellhead apparatus | Expired / Lapsed | 1962-05-03 | 1965-03-02 | 2 | Details |
| US3096103A | Dual passage rotary swivel | Expired / Lapsed | 1959-10-13 | 1963-07-02 | 0 | Details |
| US3085528A | Method and apparatus for fabricating articles of coated she… | Expired / Lapsed | 1959-12-28 | 1963-04-16 | 2 | Details |
| US2750283A | Stainless steels containing boron | Expired / Lapsed | 1953-05-27 | 1956-06-12 | 2 | Details |
| US2540141A | Longitudinal seam for corrugated metal pipe for light duty … | Expired / Lapsed | 1946-03-06 | 1951-02-06 | 0 | Details |
| US2526754A | Pipe coupling | Expired / Lapsed | 1948-02-03 | 1950-10-24 | 0 | Details |
| US2490817A | Immersion thermocouple | Expired / Lapsed | 1945-03-10 | 1949-12-13 | 0 | Details |
| US2482098A | Hardenable iron alloy | Expired / Lapsed | 1945-10-23 | 1949-09-20 | 0 | Details |
| US2455073A | Production of stainless steel | Expired / Lapsed | 1945-11-14 | 1948-11-30 | 0 | Details |