Patent Explorer

Browse, filter, and analyze 3 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US4252443A Blackening sensor Domtar Inc Expired / Lapsed 1979-08-09 1981-02-24 1999-08-09 0.0 yrs 12
US4019066A Measuring the surface roughness of a moving sheet material Domtar Inc Expired / Lapsed 1975-03-25 1977-04-19 1995-03-25 0.0 yrs 14
US3945386A Disposable diaper Domtar Inc Expired / Lapsed 1972-08-08 1976-03-23 1992-08-08 0.0 yrs 2