Patent US3900645A successfully refreshed from Google Patents.
US3900645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scored adhesive laminate
Assignee: Morgan Adhesives Co
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Filing: 1970-10-07
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Granted: 1975-08-19
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Expires: 1990-10-07
Abstract
Abstract Apparatus for scoring paper and other sheet materials which thereafter are formed into a laminate with an adhesive sheet. The scoring is not continuous but facilitates tearing the sheet at a later time to facilitate use of the laminate as a label or similar product.
Inventors
- 👤 Burton D Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:10
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/08; B26D3/085; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B31; B31F; B31F1/00; B31F1/08; B31F1/10; B29C37/00; B29C37/0053; B29C37/0057; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/149; Y10T428/15
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
A FLEXIBLE LAMINATE FOR USE AS A LABEL, DECAL OR THE LIKE, COMPRISING A FACE SHEET, A LAYER OF PRESSURE SENSITIVE ADHESIVE SECURED TO THE BACK SURFACE OF SAID FACE SHEET, AND A FIBER PAPER BACKING LAYER REMOVABLY SECURED TO SAID ADHESIVE LAYER AND HAVING REDUCED THIKNESS POTENTIAL TEAR LINE FORMED IN SUCH MATERIAL, THE FIBERS OF THE PAPER BACKING LAYER BEING APPRECIABLY COMPACTED AT A POTENTIAL TEAR LINE, THE PAPER HAVING A RELEASE COATING ON ITS INNER SURFACE WHICH ENGAGES THE ADHESIVE LAYER.
Claim 2
Dependent Claim
84 words
A FLEXIBLE LAMINATE FOR USE AS A LABEL, DECAL OR THE LIKE, COMPRISING A FACE SHEET, A LAYER OF PRESSURE SENSITIVE ADHESIVE SECURED TO THE BACK SURFACE OF SAID FACE SHEET, AND A FIBER PAPER BACKING LAYER REMOVABLY SECURED TO SAID ADHESIVE LAYER AND HAVING REDUCED THIKNESS POTENTIAL TEAR LINE FORMED IN SUCH MATERIAL, THE FIBERS OF THE PAPER BACKING LAYER BEING APPRECIABLY COMPACTED AT A POTENTIAL TEAR LINE, THE PAPER HAVING A RELEASE COATING ON ITS INNER SURFACE WHICH ENGAGES THE ADHESIVE LAYER.
Claim 3
Dependent Claim
16 words
A laminate as in claim 1 where said backing sheet is weakened at said tear line.
Claim 4
Dependent Claim
24 words
A laminate as in claim 1 where the paper backing layer is less than one-half of its uncompacted thickness at said potential tear line.
Claim 5
Dependent Claim
35 words
A laminate as in claim 3 where the compaction of said paper layer is from its outer surface to provide a recess at said potential tear line on the outer surface of said paper layer.
References Cited (Backward Citations)
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Cited
US2303346A
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US2608341A
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US3035957A
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US3006793A
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US3194479A
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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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |