US3221469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming tetrahedron shaped packages
Assignee: Packaging Frontiers Inc
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Filing: 1962-03-21
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Granted: 1965-12-07
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 John H Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/10; B65B9/20; B65B9/213; B65B41/00; B65B41/12; B65B41/16; B65B41/18; B65B9/2014; B65B9/2021; B65B9/2035; B65B9/2056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THE METHOD OF MAKING PACKAGES FROM A CONTINUOUS WEB OF FLEXIBLE PACKAGING MATERIAL COMPRISING FORMING THE WEB INTO TUBE BY BRINGING ITS SIDE MARGINS TOGETHER AND SEALING THEM TO FORM A LONGITUDINAL TUBE SEAM EXTENDING LENGTHWISE OF THE TUBE, INTERMITTENTLY FEEDING THE TUBE FORWARD IN SINGLE PACKAGE LENGTH INCREMENTS WITH DWELL INVERVALS BETWEEN SUCCESSIVELY FEEDING OPERATIONS, THE TUBE BEING MAINTAINED AGAINST ROTATION AROUND ITS AXIS AS IT IS FED FORWARDLY THEREBY MAINTAINED SAID LONGITUDINAL SEAM STRAIGHT AND EXTENDING LENGTHWISE OF THE TUBE, AND MAKING PACKAGE-END-FORMING SEALS ACROSS THE TUBE DURING SAID DWELL INTERVALS BY BRINGING SEALING INSTRUMENTALITIES INTO ENGAGEMENT WITH THE TUBE STARTING AT THE BEGINNING
Claim 2
Independent Claim
106 words
THE METHOD OF MAKING PACKAGES FROM A CONTINUOUS WEB OF FLEXIBLE PACKAGING MATERIAL COMPRISING FORMING THE WEB INTO TUBE BY BRINGING ITS SIDE MARGINS TOGETHER AND SEALING THEM TO FORM A LONGITUDINAL TUBE SEAM EXTENDING LENGTHWISE OF THE TUBE, INTERMITTENTLY FEEDING THE TUBE FORWARD IN SINGLE PACKAGE LENGTH INCREMENTS WITH DWELL INVERVALS BETWEEN SUCCESSIVELY FEEDING OPERATIONS, THE TUBE BEING MAINTAINED AGAINST ROTATION AROUND ITS AXIS AS IT IS FED FORWARDLY THEREBY MAINTAINED SAID LONGITUDINAL SEAM STRAIGHT AND EXTENDING LENGTHWISE OF THE TUBE, AND MAKING PACKAGE-END-FORMING SEALS ACROSS THE TUBE DURING SAID DWELL INTERVALS BY BRINGING SEALING INSTRUMENTALITIES INTO ENGAGEMENT WITH THE TUBE STARTING AT THE BEGINNING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |