Description
Class D21F : PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
Subclass 1/28: Wet end of machines for making continuous webs of paper Tilting, raising, or lowering mechanisms for wire-cloths in cylinder machines
D21F 1/28
Sub-Class
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- 0 Total Patent Owners
- 2 TOTAL INVENTORS
Recent Patents
Not Available
Recent Publications
Not Available
Top Owners in This Subclass
| Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More |
|---|
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 0 Months (last 2 years Issuances)
- 0 Months (last 5 years Issuances)