US3283672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag
Assignee: Amcor Flexibles North America Inc
•
Filing: 1965-07-02
•
Granted: 1966-11-08
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Robert C Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:12
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/812; B31B70/8123; B31B2160/00; B31B2160/10; B31B2160/106; B31B70/813; B31B70/8134; B31B70/8135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
THE METHOD OF MAKING BAGS COMPRISING FORMING A CONTINUOUS WEB OF BAG MATERIAL HAVING TWO SUPERPOSED WALLS JOINED ALONG ONE EDGE OF THE WEB WITH A CONTINUOUS LENGTH OF TEAR STRIP MATERIAL ADHERED TO THE WEB ON THE OUTSIDE THEREOF AND EXTENDING LONGITUDINALLY OF THE WEB, SEGMENTING THE WEB WITH THE STRIP THEREON ON TRANSVERSE LINES AT BAG WIDTH INTERVALS, AND SIDE-SEAMING THE SEGMENTS, THEREBY TO PROVIDE BAGS EACH OF WHICH HAS A TEAR STRIP EXTENDING FROM ONE SIDE THEREOF TO THE OTHER ON THE OUTSIDE OF THE BAG, WHEREIN THE TEAR STRIP IS FORMED BY EXTRUDING MOLTEN PLASTIC AS A CONTINUOUS BEAD, AND WHEREIN PORTIONS OF SAID BEAD SPACED AT INTERVALS ALONG THE LENGTH OF THE BEAD ARE COOLED PRIOR TO APPLICATION OF THE BEAD TO THE WEB, WHEREBY SAID COOLED PORTIONS REMAIN SUBSTANTIALLY FREE OF THE WEB AND PORTIONS OF THE BEAD BETWEEN SAID COOLED PORTIONS ADHERE TO THE WEB.
Claim 2
Independent Claim
152 words
THE METHOD OF MAKING BAGS COMPRISING FORMING A CONTINUOUS WEB OF BAG MATERIAL HAVING TWO SUPERPOSED WALLS JOINED ALONG ONE EDGE OF THE WEB WITH A CONTINUOUS LENGTH OF TEAR STRIP MATERIAL ADHERED TO THE WEB ON THE OUTSIDE THEREOF AND EXTENDING LONGITUDINALLY OF THE WEB, SEGMENTING THE WEB WITH THE STRIP THEREON ON TRANSVERSE LINES AT BAG WIDTH INTERVALS, AND SIDE-SEAMING THE SEGMENTS, THEREBY TO PROVIDE BAGS EACH OF WHICH HAS A TEAR STRIP EXTENDING FROM ONE SIDE THEREOF TO THE OTHER ON THE OUTSIDE OF THE BAG, WHEREIN THE TEAR STRIP IS FORMED BY EXTRUDING MOLTEN PLASTIC AS A CONTINUOUS BEAD, AND WHEREIN PORTIONS OF SAID BEAD SPACED AT INTERVALS ALONG THE LENGTH OF THE BEAD ARE COOLED PRIOR TO APPLICATION OF THE BEAD TO THE WEB, WHEREBY SAID COOLED PORTIONS REMAIN SUBSTANTIALLY FREE OF THE WEB AND PORTIONS OF THE BEAD BETWEEN SAID COOLED PORTIONS ADHERE TO THE WEB.
References Cited (Backward Citations)
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |