US3728141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline-curing corrugating adhesive
Assignee: Individual
•
Filing: 1972-07-12
•
Granted: 1973-04-17
•
Expires: 1992-07-12
Abstract
Abstract STARCH-BASED ALKALINE CURING CORRUGATING ADHESIVES CONTAINING A NOVEL CROSSLINKING ADDITIVE FOR USE IN THE MANUFACTURING OF CORRUGATED PAPERBOARD ARE DESCRIBED: SAID ADHESIVES ARE CHARACTERIZED BY THEIR EXCELLIENT STABILITY WITH RESPECT TO VISCOSITY, PROLONGED POT LIFE, AND THEIR ABILITY TO FORM WATER-RESISTANT BONDS.
Inventors
- 👤 J Schoenberg
- 👤 K Sickafoose
- 👤 Chaudhuri D Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:20
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; D21H27/40; C; C09; C09J; C09J103/00; C09J103/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28; C08L2666/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |