US3231083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrapper encased package
Assignee: WR Grace and Co
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Filing: 1964-07-23
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Granted: 1966-01-25
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Expires: 1984-07-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert Rumsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:54
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/06; B65D71/08; B65D71/10; B65D2571/00; B65D2571/00006; B65D2571/00012; B65D2571/00018; B65D2571/00024
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
264 words
A WRAPPER ENCASED PACKAGE IN WHICH A PORTION OF THE WRAPPER MAY BE TORN IN A CONTROLLED PATTERN TO OFFER ACCESS TO THE PACKAGE CONTENTS WHILE MAINTAINING THE PACKAGE STRUCTURE WHICH COMPRISES: PACKAGE CONTENTS HAVING RECESS IN AN OUTER SURFACE AREA THEREOF; A WRAPPER OF FLEXIBLE TRANSPARENT HEAT SHRINKABLE SHEET MATERIAL WHICH HAS BEEN TIGHTLY SHRUNKEN AROUND THE PACKAGE CONTENTS DISPOSED AROUND SAID PACKAGE CONTENTS AND EXTENDING OVER SAID RECESS IN TIGHTLY STRETCHED RELATIONSHIP; AND A BACKING SHEET MADE OF RELATIVELY STIFFER MATERIAL THAN SAID WRAPPER DISPOSED BETWEEN THE PACKAGE CONTENTS AND WRAPPER AND HAVING A TEARING TAB FORMED INTEGRALLY THEREWITH TERMINATING IN AN END PORTION DISPOSED ADJACENT SAID RECESS SO THAT THE WRAPPER CAN BE PUNCTURED AT SAID RECESS TO GIVE ACCESS TO THE END OF SAID TEARING TAB, AND SAID TEARING TAB BEING MADE OF A MATERIAL HAVING GREATER TENSILE STRENGTH THAN THE TEAR RESISTANCE OF THE WRAPPER SO THAT THE TEARING TAB CAN BE PULLED OUTWARDLY AGAINST THE WRAPPER FROM SAID END PORTION TO CAUSE SAID WRAPPER TO BE TORN IN A PATTERN GENERALLY FOLLOWING THE EDGES OF SAID TEARING TAB TO THEREBY PROVIDE ACCESS TO THE PACKAGE CONTENTS WHILE LEAVING THE REMAINDER OF THE WRAPPER INTACT AND IN TIGHT ENGAGEMENT WITH THE REMAINING PACKAGE CONTENTS TO PRESERVE THE PACKAGE STRUCTURE, SAID TEARING TAB EXTENDING INTO OVERLAPPING RELATIONSHIP WITH OTHER PORTIONS OF THE BACKING SHEET AND EXTENDING OVER ONLY A MINOR PORTION OF THE PACKAGE CONTENTS AND WRAPPER SO THAT WHEN THE PACKAGE IS OPENED A MAJOR PORTION OF THE PACKAGE IS LEFT INTACT AND THE PACKAGE CAN BE READILY RECLOSED.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |