US3249218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible wrapper
Assignee: Curwood Inc
•
Filing: 1963-06-25
•
Granted: 1966-05-03
•
Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 Curler Howard
- 👤 Glenn E Lineburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
AN HERMETICALLY SEALED PACKAGE CONTAINGING A PRODUCT WHICH INCLUDES OIL, GREASE OR INCIPIENT SOLVENT MATERIAL, SAID PACKAGE COMPRISING FLEXIBEL WRAPPING MATERIAL IN THE FORM OF A UNIFIED LAMINATE WHICH INCLUDES AN INTERIOR LAYER OF POLYETHYLENE SUPPORTED ON A SUBSTRATE OF POLYCARBONATE RESIN, AND MEANS FOR ANCHORING THE POLYETHYLENE TO THE POLYCARBONATE RESIN TO MAKE THE BOND THEREBETWEEN RESISTANT TO OILS, GREASES AND INCIPIENT SOLVENTS.
References Cited (Backward Citations)
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US378325A
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US2788306A
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US3080266A
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US2945773A
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US2940889A
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US2828237A
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US3017282A
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US3081214A
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US3090717A
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |