Johns Manville Corp
Johns ManvActive Patents
0
Total Holdings
48
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3240658A | Fiber reinforced plastic material and method of preparing | Expired / Lapsed | 1960-05-18 | 1966-03-15 | 2 | Details |
| US2660409A | Radiant heat exchange and acoustical structure for buildings | Expired / Lapsed | 1950-07-10 | 1953-11-24 | 0 | Details |
| US2644780A | Method of forming fluffed filamentary masses and article pr… | Expired / Lapsed | 1949-01-11 | 1953-07-07 | 4 | Details |
| US2613153A | Refractory insulating brick and method of manufacture | Expired / Lapsed | 1949-05-17 | 1952-10-07 | 2 | Details |
| US2588828A | Composition for and method of producing coated cement surfa… | Expired / Lapsed | 1948-12-11 | 1952-03-11 | 4 | Details |
| US2574221A | Method of forming a multilayered mat of intercrossed filame… | Expired / Lapsed | 1946-03-16 | 1951-11-06 | 2 | Details |
| US2546230A | Glass product and method of making the same | Expired / Lapsed | 1947-10-10 | 1951-03-27 | 2 | Details |
| US2542601A | Hair curler | Expired / Lapsed | 1946-05-24 | 1951-02-20 | 0 | Details |
| US2517330A | Apparatus for measuring the thickness of semiopaque material | Expired / Lapsed | 1949-09-07 | 1950-08-01 | 0 | Details |
| US2505045A | Filamentary product and method of its production | Expired / Lapsed | 1948-07-27 | 1950-04-25 | 0 | Details |
| US2493845A | Method of waterproofing mineral wool | Expired / Lapsed | 1945-07-02 | 1950-01-10 | 2 | Details |
| US2486120A | Pipe coupling assembly | Expired / Lapsed | 1945-08-31 | 1949-10-25 | 0 | Details |
| US2486217A | Method and apparatus for expansion of fibrous mats | Expired / Lapsed | 1945-07-20 | 1949-10-25 | 0 | Details |
| US2459721A | Method of manufacturing gaskets | Expired / Lapsed | 1946-01-26 | 1949-01-18 | 0 | Details |
| US2459720A | Folded fabric gasket and method of manufacture | Expired / Lapsed | 1945-03-19 | 1949-01-18 | 0 | Details |
| US2436262A | Apparatus for measuring turbidity photoelectrically | Expired / Lapsed | 1944-04-29 | 1948-02-17 | 0 | Details |
| US2428555A | Manufacture of magnesia insulation | Expired / Lapsed | 1943-03-27 | 1947-10-07 | 0 | Details |
| US2409066A | Manufacture of felted products | Expired / Lapsed | 1943-01-23 | 1946-10-08 | 0 | Details |
| US2379990A | Pipe coupling | Expired / Lapsed | 1942-09-19 | 1945-07-10 | 0 | Details |
| US2359751A | Pipe protection machine | Expired / Lapsed | 1942-10-07 | 1944-10-10 | 0 | Details |
| US2338839A | Method of manufacturing mineral wool products | Expired / Lapsed | 1941-11-25 | 1944-01-11 | 0 | Details |
| US2326516A | Compressed and densified product and the method of making t… | Expired / Lapsed | 1940-01-19 | 1943-08-10 | 0 | Details |
| US2321938A | Coating process | Expired / Lapsed | 1940-06-19 | 1943-06-15 | 0 | Details |
| US2318757A | Packing | Expired / Lapsed | 1940-03-05 | 1943-05-11 | 0 | Details |
| US2305516A | Method of manufacturing mineral wool product | Expired / Lapsed | 1940-05-29 | 1942-12-15 | 0 | Details |
| US2270268A | Acoustical assembly | Expired / Lapsed | 1940-06-19 | 1942-01-20 | 0 | Details |
| US2270335A | Vibration isolator | Expired / Lapsed | 1939-12-30 | 1942-01-20 | 0 | Details |
| US2246537A | Method of making asbestos-cement pipe | Expired / Lapsed | 1937-03-18 | 1941-06-24 | 0 | Details |
| US2239394A | Insulated structure | Expired / Lapsed | 1937-03-15 | 1941-04-22 | 0 | Details |
| US2221001A | Ventilating ceiling | Expired / Lapsed | 1936-10-27 | 1940-11-12 | 0 | Details |
| US2218638A | Packing | Expired / Lapsed | 1938-07-21 | 1940-10-22 | 0 | Details |
| US2173808A | Structural unit | Expired / Lapsed | 1935-12-12 | 1939-09-19 | 0 | Details |
| US2110280A | Apparatus and method for making mineral wool | Expired / Lapsed | 1936-05-13 | 1938-03-08 | 0 | Details |
| US2052603A | Article of manufacture | Expired / Lapsed | 1932-09-09 | 1936-09-01 | 0 | Details |
| US2036913A | Sound absorbing article | Expired / Lapsed | 1932-08-06 | 1936-04-07 | 0 | Details |
| US2029352A | Reenforced insulating roof slab | Expired / Lapsed | 1932-04-15 | 1936-02-04 | 0 | Details |
| US2022750A | Method of manufacturing moistureresistant mineral wool | Expired / Lapsed | 1929-12-24 | 1935-12-03 | 0 | Details |
| US1973505A | Power driven pipe wrapping and coating machine | Expired / Lapsed | 1930-01-13 | 1934-09-11 | 0 | Details |
| US1970328A | Preformed structural unit and method of making the same | Expired / Lapsed | 1933-04-24 | 1934-08-14 | 0 | Details |
| US1956377A | Insulating material and method of making | Expired / Lapsed | 1932-11-30 | 1934-04-24 | 0 | Details |
| US1950484A | Pipe wrapping tester | Expired / Lapsed | 1932-05-07 | 1934-03-13 | 0 | Details |
| US1928699A | Method of making mineral wool mixture | Expired / Lapsed | 1931-10-06 | 1933-10-03 | 0 | Details |
| US1742775A | Pipe covering | Expired / Lapsed | 1926-08-11 | 1930-01-07 | 0 | Details |
| US1363565A | Piston-packing | Expired / Lapsed | 1919-10-06 | 1920-12-28 | 0 | Details |
| US1330979A | Packing | Expired / Lapsed | 1919-04-12 | 1920-02-17 | 0 | Details |
| US1329409A | Flexible pipe-covering | Expired / Lapsed | 1919-11-06 | 1920-02-03 | 0 | Details |
| US1273738A | Packing-ringand process of making same. | Expired / Lapsed | 1917-12-14 | 1918-07-23 | 0 | Details |
| US1222363A | Piston-packing expander. | Expired / Lapsed | 1916-08-21 | 1917-04-10 | 0 | Details |