Pneumatic Scale Corp
PneumaticActive Patents
0
Total Holdings
74
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US5328441A | Imperforate bowl centrifugal separator with solids gate | Expired / Lapsed | 1993-07-20 | 1994-07-12 | 6 | Details |
| US3687352A | Container closure | Expired / Lapsed | 1971-03-08 | 1972-08-29 | 10 | Details |
| US3063890A | Apparatus for and method of sealing thermoplastic tubes | Expired / Lapsed | 1959-11-16 | 1962-11-13 | 2 | Details |
| US3023822A | An over-under recorder for weighing | Expired / Lapsed | 1956-12-31 | 1962-03-06 | 0 | Details |
| US2987857A | Method of producing infusion bags | Expired / Lapsed | 1958-10-22 | 1961-06-13 | 0 | Details |
| US2944715A | Package | Expired / Lapsed | 1957-09-10 | 1960-07-12 | 0 | Details |
| US2869718A | Infusion bag | Expired / Lapsed | 1956-09-14 | 1959-01-20 | 0 | Details |
| US2868375A | Packaging machine | Expired / Lapsed | 1954-12-09 | 1959-01-13 | 0 | Details |
| US2751180A | Packaging and check weighing machine | Expired / Lapsed | 1952-11-24 | 1956-06-19 | 0 | Details |
| US2718345A | Apparatus for and a method of filling containers by vacuum | Expired / Lapsed | 1952-12-17 | 1955-09-20 | 0 | Details |
| US2697580A | Packaging machine | Expired / Lapsed | 1950-10-20 | 1954-12-21 | 0 | Details |
| US2636732A | Web feeding method and means for container forming apparatus | Expired / Lapsed | 1948-03-30 | 1953-04-28 | 0 | Details |
| US2634080A | Weighing machine | Expired / Lapsed | 1948-10-29 | 1953-04-07 | 0 | Details |
| US2634082A | Weighing machine | Expired / Lapsed | 1948-10-29 | 1953-04-07 | 0 | Details |
| US2628055A | Check-weighing machine | Expired / Lapsed | 1951-10-24 | 1953-02-10 | 0 | Details |
| US2606657A | Bottle testing and sorting apparatus | Expired / Lapsed | 1948-02-06 | 1952-08-12 | 0 | Details |
| CA482388A | Vacuum filling apparatus | Expired / Lapsed | — | 1952-04-08 | 0 | Details |
| US2590704A | Check weighing machine | Expired / Lapsed | 1947-12-12 | 1952-03-25 | 0 | Details |
| US2549970A | Package | Expired / Lapsed | 1946-03-27 | 1951-04-24 | 0 | Details |
| US2494186A | Sheet feeding mechanism | Expired / Lapsed | 1947-06-04 | 1950-01-10 | 0 | Details |
| US2491663A | Package | Expired / Lapsed | 1946-01-29 | 1949-12-20 | 0 | Details |
| US2430281A | Web feeding mechanism | Expired / Lapsed | 1945-04-24 | 1947-11-04 | 0 | Details |
| US2395663A | Carton | Expired / Lapsed | 1943-10-09 | 1946-02-26 | 0 | Details |
| US2387585A | Packaging machine | Expired / Lapsed | 1942-03-28 | 1945-10-23 | 0 | Details |
| US2385229A | Method and apparatus for producing bags | Expired / Lapsed | 1941-10-11 | 1945-09-18 | 0 | Details |
| US2385233A | Packaging machine | Expired / Lapsed | 1939-07-14 | 1945-09-18 | 0 | Details |
| US2381505A | Packaging machine | Expired / Lapsed | 1942-05-27 | 1945-08-07 | 0 | Details |
| US2373831A | Weighing machine | Expired / Lapsed | 1942-04-07 | 1945-04-17 | 0 | Details |
| US2373838A | Automatic weighing machine | Expired / Lapsed | 1940-04-04 | 1945-04-17 | 0 | Details |
| US2364903A | Bag for infusing material | Expired / Lapsed | 1941-08-16 | 1944-12-12 | 0 | Details |
| US2364902A | Weighing machine | Expired / Lapsed | 1940-07-16 | 1944-12-12 | 0 | Details |
| US2363189A | Container separating apparatus | Expired / Lapsed | 1941-10-18 | 1944-11-21 | 0 | Details |
| US2361344A | Vented package | Expired / Lapsed | 1941-10-10 | 1944-10-24 | 0 | Details |
| US2340531A | Automatic weighing machine | Expired / Lapsed | 1941-05-16 | 1944-02-01 | 0 | Details |
| US2334256A | Method of and apparatus for making bags | Expired / Lapsed | 1942-03-25 | 1943-11-16 | 0 | Details |
| US2333790A | Packaging machine | Expired / Lapsed | 1940-10-15 | 1943-11-09 | 0 | Details |
| US2330361A | Method of and apparatus for producing bags | Expired / Lapsed | 1941-03-14 | 1943-09-28 | 0 | Details |
| US2326649A | Vacuum package | Expired / Lapsed | 1939-11-25 | 1943-08-10 | 0 | Details |
| US2311017A | Envelope machine | Expired / Lapsed | 1940-01-10 | 1943-02-16 | 0 | Details |
| US2273330A | Dispensing device | Expired / Lapsed | 1938-10-14 | 1942-02-17 | 0 | Details |
| US2272251A | Method of and apparatus for producing bags | Expired / Lapsed | 1941-03-11 | 1942-02-10 | 0 | Details |
| US2269533A | Apparatus for making and filling bags | Expired / Lapsed | 1941-03-14 | 1942-01-13 | 0 | Details |
| US2265636A | Bag forming apparatus | Expired / Lapsed | 1939-11-16 | 1941-12-09 | 0 | Details |
| US2258182A | Automatic weighing machine | Expired / Lapsed | 1938-02-24 | 1941-10-07 | 0 | Details |
| US2252462A | Package | Expired / Lapsed | 1937-07-28 | 1941-08-12 | 0 | Details |
| US2245659A | Labeling machine | Expired / Lapsed | 1940-04-04 | 1941-06-17 | 0 | Details |
| US2245694A | Container feeding apparatus | Expired / Lapsed | 1939-01-13 | 1941-06-17 | 0 | Details |
| US2224716A | Carton sealing machine | Expired / Lapsed | 1938-11-15 | 1940-12-10 | 0 | Details |
| US2224753A | Tea or coffee bag and method of making the same | Expired / Lapsed | 1938-09-16 | 1940-12-10 | 0 | Details |
| US2213602A | Method of making a package | Expired / Lapsed | 1939-01-13 | 1940-09-03 | 0 | Details |
| US2207885A | Automatic weighing machine | Expired / Lapsed | 1936-05-12 | 1940-07-16 | 0 | Details |
| US2172102A | Container filling machine | Expired / Lapsed | 1937-07-28 | 1939-09-05 | 0 | Details |
| US2168241A | Packaging machine | Expired / Lapsed | 1938-02-24 | 1939-08-01 | 0 | Details |
| US2162263A | Packaging machine | Expired / Lapsed | 1935-12-31 | 1939-06-13 | 0 | Details |
| US2147223A | Paper feeding mechanism | Expired / Lapsed | 1937-02-05 | 1939-02-14 | 0 | Details |
| US2122554A | Labeling machine | Expired / Lapsed | 1935-06-26 | 1938-07-05 | 0 | Details |
| US2116895A | Packaging machine | Expired / Lapsed | 1933-10-20 | 1938-05-10 | 0 | Details |
| US2089769A | Band forming and applying machine | Expired / Lapsed | 1934-12-11 | 1937-08-10 | 0 | Details |
| US2076617A | Weighing machine | Expired / Lapsed | 1934-07-13 | 1937-04-13 | 0 | Details |
| US2076640A | Packaging machine | Expired / Lapsed | 1932-12-06 | 1937-04-13 | 0 | Details |
| US2045230A | Packaging machine | Expired / Lapsed | 1933-03-17 | 1936-06-23 | 0 | Details |
| US2037631A | Method of wrapping an article | Expired / Lapsed | 1932-06-08 | 1936-04-14 | 0 | Details |
| US2037484A | Packaging machine | Expired / Lapsed | 1930-11-10 | 1936-04-14 | 0 | Details |
| US1958256A | Package and method of making the same | Expired / Lapsed | 1933-08-12 | 1934-05-08 | 0 | Details |
| US1911805A | Packaging machine | Expired / Lapsed | 1929-09-18 | 1933-05-30 | 0 | Details |
| US1893622A | Weighing machine | Expired / Lapsed | 1930-12-16 | 1933-01-10 | 0 | Details |
| US1819159A | Book | Expired / Lapsed | 1929-04-11 | 1931-08-18 | 0 | Details |
| US1252030A | Carton-blank-feeding machine. | Expired / Lapsed | 1916-05-10 | 1918-01-01 | 0 | Details |
| US1247250A | Process of uniting together plates of metal by sweating. | Expired / Lapsed | 1915-12-02 | 1917-11-20 | 0 | Details |
| US1199561A | Bag-filling machine. | Expired / Lapsed | 1915-07-09 | 1916-09-26 | 0 | Details |
| US1172445A | Folding metallic box. | Expired / Lapsed | 1915-08-06 | 1916-02-22 | 0 | Details |
| US1007358A | Bag or liner spreading device. | Expired / Lapsed | 1911-02-02 | 1911-10-31 | 0 | Details |
| US767394A | Weighing and filling machine. | Expired / Lapsed | 1904-01-04 | 1904-08-16 | 0 | Details |
| US708627A | Packaging-machine. | Expired / Lapsed | 1902-04-03 | 1902-09-09 | 0 | Details |