US3112985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of packaging materials
Assignee: Lever Brothers Co
•
Filing: 1960-06-23
•
Granted: 1963-12-03
•
Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Schoppmeyer Werner Rudo Ludwig
- 👤 Schmidt Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:00
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/06; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; D21H27/10; D21H5/00; D21H5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS FOR THE MANUFACTURE OF SHEET PACKAGING MATERIAL WHICH IS GREASEPROOF AND RESISTANT TO THE PASSAGE THERETHROUGH OF WATER VAPOR, WHICH COMPRISES APPLYING A WATER VAPOR IMPERVIOUS RESINOUS COATING IN A SOFT, FLOWABLE STATE TO ONE SURFACE ONLY OF A WEB OF PARCHMENTIZABLE PAPER, BONDING THE COATING TO SAID ONE SURFACE WITHOUT SUBSTANTIAL PENETRATION OF SAID RESIN INTO SAID WEB
Claim 2
Dependent Claim
61 words
A PROCESS FOR THE MANUFACTURE OF SHEET PACKAGING MATERIAL WHICH IS GREASEPROOF AND RESISTANT TO THE PASSAGE THERETHROUGH OF WATER VAPOR, WHICH COMPRISES APPLYING A WATER VAPOR IMPERVIOUS RESINOUS COATING IN A SOFT, FLOWABLE STATE TO ONE SURFACE ONLY OF A WEB OF PARCHMENTIZABLE PAPER, BONDING THE COATING TO SAID ONE SURFACE WITHOUT SUBSTANTIAL PENETRATION OF SAID RESIN INTO SAID WEB
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |