Patent US3371428A successfully refreshed from Google Patents.
Patent US2773773A successfully refreshed from Google Patents.
US2773773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing process
Assignee: Akzo Nobel UK PLC
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Filing: 1953-07-27
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Granted: 1956-12-11
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Expires: 1973-07-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Harder
- 👤 Henry H Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:51
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0003; A22C2013/0059; A22C2013/0066; A22C2013/0069; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1013; Y10T156/1036; Y10T156/1038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
THE METHOD OF PRODUCING A STUFFED PRODUCT WHICH COMPRISES CONTINUOUSLY PASSING A CONTINUOUS HYDROPHILIC SHEET MATERIAL THROUGH A PATH, OVERLAPPING OPPOSITE LATERAL EDGES OF THE SHEET AT A POINT IN THE PATH TO FORM A TUBULAR CASING, CONTINUOUSLY PASSING AN ELONGATED THERMOPLASTIC MEMBER THROUGH ANOTHER PATH MERGING WITH THE FIRST PATH BETWEEN THE OVERLAPPED EDGES OF THE SHEET, PREHEATING THE MEMBER TO RENDER IT ADHESIVE AS IT PROCEEDS TO THE POINT OF MERGING, PRESSING THE MEMBER AND THE OVERLAPPED EDGES TO BOND THEM TOGETHER AND THEREBY SEAL THE CASING, CONTINUOUSLY PASSING A PLASTIC FOODSTUFF THROUGH A THIRD PATH EXTENDING INTO THE TUBULAR CASING, CONFINING THE PLASTIC FOODSTUFF OUT OF CONTACT WITH THE CASING AS IT PASSED THROUGH THE POINT OF SEALING, AND THEREAFTER DISCHARGING THE PLASTIC FOODSTUFF INTO DIRECT CONTACT WITH THE INTERIOR OF THE CASING AT A POINT BEYOND THE POINT OF SEALING.
Claim 2
Independent Claim
144 words
THE METHOD OF PRODUCING A STUFFED PRODUCT WHICH COMPRISES CONTINUOUSLY PASSING A CONTINUOUS HYDROPHILIC SHEET MATERIAL THROUGH A PATH, OVERLAPPING OPPOSITE LATERAL EDGES OF THE SHEET AT A POINT IN THE PATH TO FORM A TUBULAR CASING, CONTINUOUSLY PASSING AN ELONGATED THERMOPLASTIC MEMBER THROUGH ANOTHER PATH MERGING WITH THE FIRST PATH BETWEEN THE OVERLAPPED EDGES OF THE SHEET, PREHEATING THE MEMBER TO RENDER IT ADHESIVE AS IT PROCEEDS TO THE POINT OF MERGING, PRESSING THE MEMBER AND THE OVERLAPPED EDGES TO BOND THEM TOGETHER AND THEREBY SEAL THE CASING, CONTINUOUSLY PASSING A PLASTIC FOODSTUFF THROUGH A THIRD PATH EXTENDING INTO THE TUBULAR CASING, CONFINING THE PLASTIC FOODSTUFF OUT OF CONTACT WITH THE CASING AS IT PASSED THROUGH THE POINT OF SEALING, AND THEREAFTER DISCHARGING THE PLASTIC FOODSTUFF INTO DIRECT CONTACT WITH THE INTERIOR OF THE CASING AT A POINT BEYOND THE POINT OF SEALING.
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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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |