US3103459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paperboard corrugating medium treatment
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
•
Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:34
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF ENCHANCING THE RUNNABILITY OF A PAPERBOARD CORRUGATING MEDIUM WEB THROUGH CORRUGATING ROLLS WHILE SIMULTANEOUSLY MINIMIZING FRACTURE OF SAID WEB WHICH COMPRISES THINLY APPLYING TTO AT LEAST ONE SURFACE OF SAID WEEB AN EMULSIFIABLE POLYETHYLENE HAVING AN AVERAGE MOLECULAR WEIGHT RANGING BETWEEN APPROXIMATELY 1,000 AND 25,000, AN ACID NUMBER RANGING BETWEEN ABOUT 4 AND 20, AND A SOFTENING POINT RANGING BETWEEN ABOUT 210*F. AND 227*F. AND CORRUGATING SAID WEB BY PASSING IT BETWEEN OPPOSED CORRUGATING ROLLS.
Claim 2
Independent Claim
78 words
THE METHOD OF ENCHANCING THE RUNNABILITY OF A PAPERBOARD CORRUGATING MEDIUM WEB THROUGH CORRUGATING ROLLS WHILE SIMULTANEOUSLY MINIMIZING FRACTURE OF SAID WEB WHICH COMPRISES THINLY APPLYING TTO AT LEAST ONE SURFACE OF SAID WEEB AN EMULSIFIABLE POLYETHYLENE HAVING AN AVERAGE MOLECULAR WEIGHT RANGING BETWEEN APPROXIMATELY 1,000 AND 25,000, AN ACID NUMBER RANGING BETWEEN ABOUT 4 AND 20, AND A SOFTENING POINT RANGING BETWEEN ABOUT 210*F. AND 227*F. AND CORRUGATING SAID WEB BY PASSING IT BETWEEN OPPOSED CORRUGATING ROLLS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |