US3203323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing bags
Assignee: West Virginia Pulp and Paper Co
•
Filing: 1962-12-07
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Granted: 1965-08-31
•
Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Samuel T Adams
- 👤 Ben P Zober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:17
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/812; B31B70/8123; B31B2155/00; B31B2155/001; B31B2155/0012; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
THE METHOD OF MAKING OPEN MOUTH GUSSETED PINCH BOTTOM BAGS FROM A CONTINUOUS PAPER WEB COMPRISING: (A) FORMING THE WEB INTO A GUSSETED TUBE HAVING OPPOSITE WALLS AND OPPOSITE GUSSETED SIDES, (B) PRIOR TO SAID FORMING WHILE THE WEB IS IN A FLATTENED CONDITION MAKING A PAIR OF TRANSVERSELY SEPARATED AND ALIGNED STEPPED PERFORATIONS THROUGH THE WEB, SAID PERFORATIONS EXTENDING ACROSS ONLY A MINOR PORTION OF THE WEB WIDTH AND BEING SEPARATED FROM THE EDGES OF SAID WEB BY A SUBSTANTIAL TRANSVERSE PORTION OF NON-PERFORATED WEB, EACH OF SAID PAPER OF PERFORATIONS COMPRISING TWO LONGITUDINALLY DISPLACED TRANSVERSE SECTIONS LONGER THAN THE DEPTH OF THE GUSSET WHICH WILL EXTEND WHEN THE GUSSET TUBE IS FORMED INWARD IN OPPOSITE WALLS OF THE TUBES FROM THE GUSSETED SIDE OF THE TUBE AND A SECTION CONNECTING THE ENDS OF THE TRANSVERSE SECTIONS THROUGH THE PORTION OF THE WEB WHICH WILL FORM THE GUSSETS, (C) AFTER FORMATION OF THE TUBE TRANSVERSELY PERFORATING EACH OF THE OPPOSITE WALLS OF THE TUBE ALONG A TRANSVERSE LINE CONNECTING THE INNER ENDS OF THE TRANSVERSE SECTIONS OF THE STEPPED PERFORATIONS, (D) SEPARATING THE GUSSETED TUBE INTO BAG LENGTH SECTIONS ALONG THE LINES OF PERFORATION, AND (E) FOLDING OVER AND SEALING AN END PORTION OF THE BAG LENGTH TUBE UPON ONE WALL OF THE TUBE.
Claim 2
Independent Claim
215 words
THE METHOD OF MAKING OPEN MOUTH GUSSETED PINCH BOTTOM BAGS FROM A CONTINUOUS PAPER WEB COMPRISING: (A) FORMING THE WEB INTO A GUSSETED TUBE HAVING OPPOSITE WALLS AND OPPOSITE GUSSETED SIDES, (B) PRIOR TO SAID FORMING WHILE THE WEB IS IN A FLATTENED CONDITION MAKING A PAIR OF TRANSVERSELY SEPARATED AND ALIGNED STEPPED PERFORATIONS THROUGH THE WEB, SAID PERFORATIONS EXTENDING ACROSS ONLY A MINOR PORTION OF THE WEB WIDTH AND BEING SEPARATED FROM THE EDGES OF SAID WEB BY A SUBSTANTIAL TRANSVERSE PORTION OF NON-PERFORATED WEB, EACH OF SAID PAPER OF PERFORATIONS COMPRISING TWO LONGITUDINALLY DISPLACED TRANSVERSE SECTIONS LONGER THAN THE DEPTH OF THE GUSSET WHICH WILL EXTEND WHEN THE GUSSET TUBE IS FORMED INWARD IN OPPOSITE WALLS OF THE TUBES FROM THE GUSSETED SIDE OF THE TUBE AND A SECTION CONNECTING THE ENDS OF THE TRANSVERSE SECTIONS THROUGH THE PORTION OF THE WEB WHICH WILL FORM THE GUSSETS, (C) AFTER FORMATION OF THE TUBE TRANSVERSELY PERFORATING EACH OF THE OPPOSITE WALLS OF THE TUBE ALONG A TRANSVERSE LINE CONNECTING THE INNER ENDS OF THE TRANSVERSE SECTIONS OF THE STEPPED PERFORATIONS, (D) SEPARATING THE GUSSETED TUBE INTO BAG LENGTH SECTIONS ALONG THE LINES OF PERFORATION, AND (E) FOLDING OVER AND SEALING AN END PORTION OF THE BAG LENGTH TUBE UPON ONE WALL OF THE TUBE.
References Cited (Backward Citations)
US2013086A
Cited
US2129842A
Cited
US2087444A
Cited
US2124209A
Cited
US2179464A
Cited
US2205718A
Cited
US2209901A
Cited
US3040633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |