Armco Inc
Armco IncActive Patents
0
Total Holdings
21
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3357194A | Liner plate | Expired / Lapsed | 1965-05-27 | 1967-12-12 | 2 | Details |
| 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 |
| US3060889A | Coating control device | Expired / Lapsed | 1960-09-26 | 1962-10-30 | 0 | Details |
| US3000752A | Coating metallic sheet or strip material with powdered anne… | Expired / Lapsed | 1957-12-30 | 1961-09-19 | 2 | Details |
| US2890046A | Conveyor with tracking control | Expired / Lapsed | 1955-07-29 | 1959-06-09 | 0 | Details |
| US2846324A | Refractory and method | Expired / Lapsed | 1954-05-14 | 1958-08-05 | 2 | Details |
| US2840890A | Wire coating | Expired / Lapsed | 1952-03-19 | 1958-07-01 | 1 | Details |
| US2750283A | Stainless steels containing boron | Expired / Lapsed | 1953-05-27 | 1956-06-12 | 2 | Details |
| US2582382A | Production of electrical steel strip | Expired / Lapsed | 1946-11-23 | 1952-01-15 | 1 | Details |
| CA474912A | Springs and methods | Expired / Lapsed | — | 1951-07-03 | 0 | Details |
| US2536034A | High-temperature stainless steel | Expired / Lapsed | 1948-08-23 | 1951-01-02 | 2 | Details |
| US2526754A | Pipe coupling | Expired / Lapsed | 1948-02-03 | 1950-10-24 | 0 | Details |
| US2526731A | Method of and apparatus for coating metallic strands with a… | Expired / Lapsed | 1945-02-13 | 1950-10-24 | 1 | Details |
| US2510155A | Process for treatment of molten stainless steel | Expired / Lapsed | 1945-07-11 | 1950-06-06 | 2 | 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 |
| US2473156A | Process for developing high magnetic permeability and low c… | Expired / Lapsed | 1944-11-16 | 1949-06-14 | 0 | Details |
| US2455073A | Production of stainless steel | Expired / Lapsed | 1945-11-14 | 1948-11-30 | 0 | Details |