US3051605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making valved bags from extruded thermoplastic materials
Assignee: Individual
•
Filing: 1958-11-20
•
Granted: 1962-08-28
•
Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Forrest B Stannard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:21
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; Y; Y10; Y10S; Y10S383/00; Y10S383/904; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF MAKING MERCHANDIZING BAGS OF THERMOPLASTIC MATERIAL WHICH COMPRISES, HEATING THE MATERIAL TO A PLASTIC CONDITION, EXTRUDING THE HEATED MATERIAL THROUGH A DIE ORIFICE TO CONTAINUOUSLY FORM A SEAMLESS TUBE, PROVIDING THE TUBE AS IT EMERGES FROM THE DIE ORIFICE AND WHILE IT IS IN A PLASTIC DEFORMABLE CONDITION WITH A SUCCESSION OF SPACED FILLING VALVE MEMBERS EXTENDING INTEGRALLY THEREFROM AND AT AN ANGLE TO THE AXIS THEREOF, WELDING SUCCESSIVE OPPOSEDS TRANSVERSE PORTION OF THE SEAMLESS TUBE WALLS, ADJECENT TO AND AT ONE SIDE OF SAID FILING VALVE MEMBERS, TOGETHER TO FORM A SUCCESSION OF CONNECTED LENGTHS OF CLOSED SEAMLESS TUBING WITH EACH OF SAID LENGTHS PROVIDED WITH A FILLING TUBE, AND SEVERING THE VALVE MEMBER TRANSVERSELY SUBSTANTIALLY CENTRALLY ALONG SAID TRANSVERSELY WELDED PORTIONS,
Claim 2
Independent Claim
126 words
THE METHOD OF MAKING MERCHANDIZING BAGS OF THERMOPLASTIC MATERIAL WHICH COMPRISES, HEATING THE MATERIAL TO A PLASTIC CONDITION, EXTRUDING THE HEATED MATERIAL THROUGH A DIE ORIFICE TO CONTAINUOUSLY FORM A SEAMLESS TUBE, PROVIDING THE TUBE AS IT EMERGES FROM THE DIE ORIFICE AND WHILE IT IS IN A PLASTIC DEFORMABLE CONDITION WITH A SUCCESSION OF SPACED FILLING VALVE MEMBERS EXTENDING INTEGRALLY THEREFROM AND AT AN ANGLE TO THE AXIS THEREOF, WELDING SUCCESSIVE OPPOSEDS TRANSVERSE PORTION OF THE SEAMLESS TUBE WALLS, ADJECENT TO AND AT ONE SIDE OF SAID FILING VALVE MEMBERS, TOGETHER TO FORM A SUCCESSION OF CONNECTED LENGTHS OF CLOSED SEAMLESS TUBING WITH EACH OF SAID LENGTHS PROVIDED WITH A FILLING TUBE, AND SEVERING THE VALVE MEMBER TRANSVERSELY SUBSTANTIALLY CENTRALLY ALONG SAID TRANSVERSELY WELDED PORTIONS,
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |