Patent US3274905A successfully refreshed from Google Patents.
US3274905A
Expired / Lapsed
US
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Method of making a composite container
Assignee: Alcoa Corp
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Filing: 1965-06-04
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Granted: 1966-09-27
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Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Jr John N Demsey
- 👤 James A Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:09
CPC Classifications
B; B31; B31C; B31C3/00; B31C3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A METHOD OF MAKING A COMPOSITE METALLIC FOILPAPER CONTAINER, THE STEPS COMPRISING: (A) SPIRALLY WINDING A METALLIC FOIL LINER PLY OVER AN ELONGATED MANDREL; (B) SPIRALLY WINDING A LONGITUDINALLY OFFSET PAPERBOARD PLY OVER SAID LINER PLY WITH A CONTINUOUS AND COEXTENSIVE LAYER OF THERMOPLASTIC ADHESIVE INTERPOSED BETWEEN SAID LINER PLY AND SAID PAPERBOARD BODY PLY; AND (C) CONTINUOUSLY BONDING SAID PILES BY ELEVATING THE TEMPERATURE OF THE COMPOSITE WRAP TO THE HEAT SEALING TEMPERATURE OF SAID ADHESIVE.
Claim 2
Dependent Claim
78 words
IN A METHOD OF MAKING A COMPOSITE METALLIC FOILPAPER CONTAINER, THE STEPS COMPRISING: (A) SPIRALLY WINDING A METALLIC FOIL LINER PLY OVER AN ELONGATED MANDREL; (B) SPIRALLY WINDING A LONGITUDINALLY OFFSET PAPERBOARD PLY OVER SAID LINER PLY WITH A CONTINUOUS AND COEXTENSIVE LAYER OF THERMOPLASTIC ADHESIVE INTERPOSED BETWEEN SAID LINER PLY AND SAID PAPERBOARD BODY PLY; AND (C) CONTINUOUSLY BONDING SAID PILES BY ELEVATING THE TEMPERATURE OF THE COMPOSITE WRAP TO THE HEAT SEALING TEMPERATURE OF SAID ADHESIVE.
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |