Patent Explorer
Browse, filter, and analyze 39 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| GB898069A | Method of relieving residual stresses in light metal articles | Alcoa Corp | Expired / Lapsed | 1959-12-15 | — | 1979-12-15 | 0.0 yrs | 0 | |
| US4704886A | Stretch-forming process | Alcoa Corp | Expired / Lapsed | 1985-04-22 | 1987-11-10 | 2005-04-22 | 0.0 yrs | 7 | |
| US3524046A | Apparatus and method for piercing holes in elastomeric articles | Alcoa Corp | Expired / Lapsed | 1968-04-26 | 1970-08-11 | 1988-04-26 | 0.0 yrs | 0 | |
| US3019373A | Differential direct current responsive control system | Alcoa Corp | Expired / Lapsed | 1959-01-02 | 1962-01-30 | 1979-01-02 | 0.0 yrs | 0 | |
| US2999671A | Handrail connection | Alcoa Corp | Expired / Lapsed | 1959-03-17 | 1961-09-12 | 1979-03-17 | 0.0 yrs | 0 | |
| US2908073A | Method of bonding aluminous metal to dissimilar metal | Alcoa Corp | Expired / Lapsed | 1957-06-07 | 1959-10-13 | 1977-06-07 | 0.0 yrs | 2 | |
| US2662034A | Method of impregnating an oxide coating on aluminum and resulting article | Alcoa Corp | Expired / Lapsed | 1950-07-14 | 1953-12-08 | 1970-07-14 | 0.0 yrs | 2 | |
| US2659252A | Fabrication of light metals | Alcoa Corp | Expired / Lapsed | 1952-05-09 | 1953-11-17 | 1972-05-09 | 0.0 yrs | 2 | |
| CA480412A | Method of casting | Alcoa Corp | Expired / Lapsed | — | 1952-01-22 | 1969-01-22 | 0.0 yrs | 0 | |
| US2530669A | Extrusion apparatus | Alcoa Corp | Expired / Lapsed | 1944-11-30 | 1950-11-21 | 1964-11-30 | 0.0 yrs | 0 | |
| US2510770A | Induction heating control mechanism | Alcoa Corp | Expired / Lapsed | 1946-12-11 | 1950-06-06 | 1966-12-11 | 0.0 yrs | 0 | |
| US2429525A | Billet feeder | Alcoa Corp | Expired / Lapsed | 1943-12-17 | 1947-10-21 | 1963-12-17 | 0.0 yrs | 0 | |
| US2426988A | Mold coating | Alcoa Corp | Expired / Lapsed | 1942-11-13 | 1947-09-09 | 1962-11-13 | 0.0 yrs | 0 | |
| US2389443A | Coil handling apparatus | Alcoa Corp | Expired / Lapsed | 1943-02-06 | 1945-11-20 | 1963-02-06 | 0.0 yrs | 0 | |
| US2378155A | Treatment of adsorbent alumina | Alcoa Corp | Expired / Lapsed | 1943-03-24 | 1945-06-12 | 1963-03-24 | 0.0 yrs | 0 | |
| US2367317A | Closure | Alcoa Corp | Expired / Lapsed | 1942-07-04 | 1945-01-16 | 1962-07-04 | 0.0 yrs | 0 | |
| US2322700A | Structure | Alcoa Corp | Expired / Lapsed | 1940-05-18 | 1943-06-22 | 1960-05-18 | 0.0 yrs | 0 | |
| US2301027A | Method of casting | Alcoa Corp | Expired / Lapsed | 1938-07-02 | 1942-11-03 | 1958-07-02 | 0.0 yrs | 0 | |
| US2243832A | Welding apparatus and method | Alcoa Corp | Expired / Lapsed | 1938-06-16 | 1941-06-03 | 1958-06-16 | 0.0 yrs | 0 | |
| US2225292A | Work-handling mechanism | Alcoa Corp | Expired / Lapsed | 1939-08-03 | 1940-12-17 | 1959-08-03 | 0.0 yrs | 0 |
Showing 1 to 20 of 39 patents
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