Patent US3700525A successfully refreshed from Google Patents.
US3700525A
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US
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Method of making a laminate having varying thickness
Assignee: International Paper Co
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Filing: 1969-04-03
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Granted: 1972-10-24
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Expires: 1989-04-03
Abstract
Abstract THE PRESENT INVENTION CONTEMPLATES AN APPARATUS, A PROCESS AND A PRODUCT PRODUCED BY THE PROCESS, WHEREBY PRESELECTED AREAS OF A MOVING PAPERBOARD SUBSTRATE ARE COATED WITH A THERMOPLASTIC FILM HAVING ZONES OF DIFFERENT THICKNESS, SO THAT THE SUBSTRATE AREAS ARE IN PREDETERMINED REGISTRY WITH THE FILM ZONES, BY EMPLOYING A THREADED DECKLE ROD DURING THE EXTRUSION OF THE THERMOPLASTIC FILM. THE THREADED DECKLE ROD IMPARTS THE VARYING THICKNESS PROFILE TO THE FILM.
Inventors
- 👤 Glenn M Violette
- 👤 Leon J Paquin
- 👤 James A Lock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:35
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/12; B29C48/07; B29C48/08; B29C48/25; B29C48/30; B29C48/305; B32; B32B; B32B27/00; B32B27/06; B32B27/10; B29C48/001; B29C48/0011; B29C48/0013; B29C48/0014; B29C48/0018; B29C48/0019; B29C48/0022; B29C48/15; B29C48/154; B29C48/16; B29C48/18; B29C48/21; B32B2439/00; B32B2439/40; B32B2439/62
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |