Patent CA993541A successfully refreshed from Google Patents.
CA993541A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Computer control for continuous drum-type vacuum pulp washers
Assignee: Westinghouse Electric Corp
•
Filing: 1972-11-14
•
Granted: 1976-07-20
•
Expires: 1992-11-14
Abstract
No abstract record available.
Inventors
- 👤 Richard E. Putman
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-30 06:56
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/02; D21C9/06; D21G; D21G9/00; D21G9/0009
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.