Invention Grant
- Patent Title: Safety paper
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Application No.: US16412637Application Date: 1937-09-16
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Publication No.: US2208653APublication Date: 1940-07-23
- Inventor: WILLIAM WHITEHEAD
- Applicant: CELANESE CORP
- Assignee: Celanese Corp
- Current Assignee: Celanese Corp
- Priority: US16412637 1937-09-16
- Main IPC: D21H21/44
- IPC: D21H21/44
Public/Granted literature
- US11144538B2 Predictive database index modification Public/Granted day:2021-10-12
Information query
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