US3291374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-ply bag and process for the manufacture thereof
Assignee: Albemarle Paper Manufacturing Co
•
Filing: 1965-03-30
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Granted: 1966-12-13
•
Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 John G Lepisto
- 👤 William J Tilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:50
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/04; B65D33/00; B65D33/004; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48026; B65D5/48028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A MULTI-PLY BAG COMPRISING: (A) A PLURALITY OF CONCENTRICALLY ARRANGED TUBULAR PLIES OF MATERIAL; (B) THE OUTER PLY OF MATERIAL HAVING A WINDOW OPENING PROVIDED ADJACENT ONE END; (C) A SHEET OF TRANSPARENT MATERIAL POSITIONED OVER SAID WINDOW OPENING BETWEEN SAID OUTER PLY AND THE NEXT INNERMOST PLY OF MATERIAL, SAID SHEET BEING IN THE FORM OF A STRIP EXTENDING OVER THE LENGTH OF SAID TUBULAR PLIES; (D) ADHESIVE MEANS ATTACHING SAID SHEET OF TRANSPARENT MATERIAL TO SAID OUTER PLY ADJACENT TO SAID WINDOW OPENING; (E) TRANSVERSELY EXTENDING ADHESIVE MEANS ATTACHING SAID OUTER PLY AND SAID SHEET OF TRANSPARENT MATERIAL TO SAID NEXT INNERMOST PLY BETWEEN SAID WINDOW OPENING AND THE END OPPOSITE SAID ADJACENT
Claim 2
Dependent Claim
115 words
A MULTI-PLY BAG COMPRISING: (A) A PLURALITY OF CONCENTRICALLY ARRANGED TUBULAR PLIES OF MATERIAL; (B) THE OUTER PLY OF MATERIAL HAVING A WINDOW OPENING PROVIDED ADJACENT ONE END; (C) A SHEET OF TRANSPARENT MATERIAL POSITIONED OVER SAID WINDOW OPENING BETWEEN SAID OUTER PLY AND THE NEXT INNERMOST PLY OF MATERIAL, SAID SHEET BEING IN THE FORM OF A STRIP EXTENDING OVER THE LENGTH OF SAID TUBULAR PLIES; (D) ADHESIVE MEANS ATTACHING SAID SHEET OF TRANSPARENT MATERIAL TO SAID OUTER PLY ADJACENT TO SAID WINDOW OPENING; (E) TRANSVERSELY EXTENDING ADHESIVE MEANS ATTACHING SAID OUTER PLY AND SAID SHEET OF TRANSPARENT MATERIAL TO SAID NEXT INNERMOST PLY BETWEEN SAID WINDOW OPENING AND THE END OPPOSITE SAID ADJACENT
References Cited (Backward Citations)
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Cited
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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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |