Patent US3119216A successfully refreshed from Google Patents.
US3119216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sealing of thermoplastic containers
Assignee: Phillips Petroleum Co
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Filing: 1960-05-05
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Granted: 1964-01-28
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Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward C Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:45
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/162; B65B7/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD FOR JOINING THE SURFACES OF A THERMOPLASTIC FILM AND A THERMOPLASTIC CONTAINER HAVING A LIP DEFINING AN OPENING TO FORM A SEALED CONTAINER WHICH COMPRISES APPLYING HEAT TO MELT AT LEAST A PORTION OF A CONTACTING SURFACE OF SAID LIP WITHOUT APPLYING HEAT TO SAID FILM, DISCONTINUING THE APPLICATION OF HEAT, IMMEDIATELY ENGAGING SAID MOLTEN PORTION IN INTIMATE CONTACT WITH THE FILM WHILE SAID SURFACE IS MOLTEN TO ENCLOSE THE OPENING OF SAID CONTAINER, THEREBY FUSING WITH SAID CONTINER AND COOLING THE FUSED SURFACES TO CAUSE SOLIDIFICATION AND INTEGRATION THEREOF.
Claim 2
Independent Claim
92 words
A METHOD FOR JOINING THE SURFACES OF A THERMOPLASTIC FILM AND A THERMOPLASTIC CONTAINER HAVING A LIP DEFINING AN OPENING TO FORM A SEALED CONTAINER WHICH COMPRISES APPLYING HEAT TO MELT AT LEAST A PORTION OF A CONTACTING SURFACE OF SAID LIP WITHOUT APPLYING HEAT TO SAID FILM, DISCONTINUING THE APPLICATION OF HEAT, IMMEDIATELY ENGAGING SAID MOLTEN PORTION IN INTIMATE CONTACT WITH THE FILM WHILE SAID SURFACE IS MOLTEN TO ENCLOSE THE OPENING OF SAID CONTAINER, THEREBY FUSING WITH SAID CONTINER AND COOLING THE FUSED SURFACES TO CAUSE SOLIDIFICATION AND INTEGRATION THEREOF.
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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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |