Patent US2815896A successfully refreshed from Google Patents.
US2815896A
Expired / Lapsed
US
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Flexible container
Assignee: Wallace Container Co
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Filing: 1955-07-28
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Granted: 1957-12-10
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Expires: 1975-07-28
Abstract
No abstract record available.
Inventors
- 👤 Wallace H Shapero
- 👤 Davis Roy Elbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:42
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/26; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29D; B29D23/00; B29D23/20; B32; B32B; B32B27/00; B65B; B65B3/00; B65B3/02; B65D35/00; B65D35/02; B29L; B29L2023/00; B29L2023/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A CONTAINER HAVING A LAMINATED WALL COMPRISING AN OUTER BODY OF RELATIVELY TOUGH, FLEXIBLE THERMOPLASTIC RESIN; A MIDDLE LAYER, RESISTANT TO CHEMICAL DETERIORATION FROM CONTENTS AND MIDDLE LAYER COMPRISING A MIXTURE OF THERMOPLASTIC AND THERMOSETTING RESINS; AND AN INTERIOR LAYER OF HEAT SEALABLE THERMOPLASTIC RESIN, AND LAYERS BEING INTERGRALLY UNITED.
Claim 2
Dependent Claim
50 words
A CONTAINER HAVING A LAMINATED WALL COMPRISING AN OUTER BODY OF RELATIVELY TOUGH, FLEXIBLE THERMOPLASTIC RESIN; A MIDDLE LAYER, RESISTANT TO CHEMICAL DETERIORATION FROM CONTENTS AND MIDDLE LAYER COMPRISING A MIXTURE OF THERMOPLASTIC AND THERMOSETTING RESINS; AND AN INTERIOR LAYER OF HEAT SEALABLE THERMOPLASTIC RESIN, AND LAYERS BEING INTERGRALLY UNITED.
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |