US3257482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making plastic container
Assignee: Phillips Petroleum Co
•
Filing: 1963-06-17
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Granted: 1966-06-21
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Schechter Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:12
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/03; B29C48/09; B29C48/16; B29C48/18; B29C48/19; B29C48/20; B29C48/001; B29C48/0017; B29C48/0021; B29C48/0022; B29C48/12; B29C48/13; B29C48/15; B29C48/154; B29C48/155; B29C48/17; B29C48/21; B29C48/36; B29C48/49; B29K; B29K2105/00; B29K2105/04; B29K2105/25; B29K2105/253; B29K2105/258; B29K2995/00; B29K2995/0012; B29K2995/0015; B29L; B29L2031/00; B29L2031/712; B29L2031/7132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR MAKING A PLASTIC CUP WHICH COMPRISES SIMULTANEOUSLY EXTRUDING, IN CONTACT, A TUBE OF THE UNFOAMED RESIN AND AT LEAST ONE STRIPE OF A RESIN CONTAINING A FOAMING AGENT THRU A DIE TO FORM A STRIPED PARISON, SAID FOAMING AGENT CAUSING FOAMING DURIG THE EXTRUSION STEP SO AS TO PRODUCE A FOAMED LONGITUDINAL STRIP HEAT SEALED TO THE UNFOAMED WALL OF SAID PARISON; AND FORMING SAID PARISON INTO CUP FORM.
Claim 2
Dependent Claim
72 words
A PROCESS FOR MAKING A PLASTIC CUP WHICH COMPRISES SIMULTANEOUSLY EXTRUDING, IN CONTACT, A TUBE OF THE UNFOAMED RESIN AND AT LEAST ONE STRIPE OF A RESIN CONTAINING A FOAMING AGENT THRU A DIE TO FORM A STRIPED PARISON, SAID FOAMING AGENT CAUSING FOAMING DURIG THE EXTRUSION STEP SO AS TO PRODUCE A FOAMED LONGITUDINAL STRIP HEAT SEALED TO THE UNFOAMED WALL OF SAID PARISON; AND FORMING SAID PARISON INTO CUP FORM.
References Cited (Backward Citations)
US2270625A
Cited
US2904844A
Cited
US3037652A
Cited
US2909810A
Cited
US2942301A
Cited
US3145243A
Cited
US3127636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |