US3133480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of multiwall paper bags and machine for the practical application of the said method
Assignee: QUEVILLY EMBALLAGES
•
Filing: 1962-06-05
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Granted: 1964-05-19
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Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Gerard Andre Auguste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:43
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/62; B31B2150/00; B31B2160/00; B31B2160/10; B31B2160/106; B31B2170/00; B31B2170/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A PROCESS FOR THE CONTINUOUS FORMING OF A TUBE FOR THE MANUFACTURE OF MULTIWALL PAPER BAGS FROM AN INNER WEB OF WATERPROOF AND HEAT-SEALING MATERIAL WHICH IS INDEPENDENTLY FOLDED INTO A TUBE AND CLOSED BY A LONGITUDINAL SEALING JOINT AND A PLURALITY OF PAPER WEBS WHICH SURROUND SAID INENR WEB AND WHICH ARE INDIVIDUALLY CLOSED LONGITUDINALLY THEREOF BY GLUEING, THE STEP WHICH CONSISTS IN CONTINUOUSLY DOUBLING BACK ONE OF THE ONGITUDINAL MARGAINAL PORTIONS OF SAID INNER WALL DURING THE TUBE FORMING OPERATION, OVERLAPPING THE OTHER LONGITUDINAL MARGINAL PORTIN ON SAID DIRST MARGINAL PORTION FORMING A HEM AND SEALING THE MARGINAL PORTION ONLY OF THE WIDTH OF SAID HEM.
Claim 2
Dependent Claim
109 words
IN A PROCESS FOR THE CONTINUOUS FORMING OF A TUBE FOR THE MANUFACTURE OF MULTIWALL PAPER BAGS FROM AN INNER WEB OF WATERPROOF AND HEAT-SEALING MATERIAL WHICH IS INDEPENDENTLY FOLDED INTO A TUBE AND CLOSED BY A LONGITUDINAL SEALING JOINT AND A PLURALITY OF PAPER WEBS WHICH SURROUND SAID INENR WEB AND WHICH ARE INDIVIDUALLY CLOSED LONGITUDINALLY THEREOF BY GLUEING, THE STEP WHICH CONSISTS IN CONTINUOUSLY DOUBLING BACK ONE OF THE ONGITUDINAL MARGAINAL PORTIONS OF SAID INNER WALL DURING THE TUBE FORMING OPERATION, OVERLAPPING THE OTHER LONGITUDINAL MARGINAL PORTIN ON SAID DIRST MARGINAL PORTION FORMING A HEM AND SEALING THE MARGINAL PORTION ONLY OF THE WIDTH OF SAID HEM.
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |