US3002231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding process
Assignee: Phillips Petroleum Co
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Filing: 1958-06-06
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Granted: 1961-10-03
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Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Billy L Walker
- 👤 Donald L Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:00
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/18; B29C41/00; B29C41/02; B29C41/08; B29C41/10; B29C70/00; B29C70/68; B29C70/78; B32; B32B; B32B27/00; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/25; B29K2105/251; Y; Y10; Y10S; Y10S264/00; Y10S264/51; Y10S425/00; Y10S425/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF FORMING A LAMINATED THERMOPLASTIC ARTICLE COMPRISING HEATING A MANDREL TO ABOVE THE SOFTENING TEMPERATURE OF SAID THERMOPLASTIC, INSERTING THE HEATED MANDREL INTO A BED OF POWDERED THERMOPLASTIC POLYMER THEREBY CAUSING THE POLYMER TO FUSE ON SAID MANDREL, INSERTING THE THUS TREATED MANDREL INTO THE CAVITY OF A MATCHED MOLD CONTAINING A POLYMERIC MATERIAL WITH SUFFICIENT FORCE TO CAUSE SAID MATERIAL TO FLOW AROUND SAID COATED MANDREL AND FORM SAID ARTICLE, AND THEREAFTER RECOVERING THE THUS FORMED ARTICLE.
Claim 2
Independent Claim
80 words
A METHOD OF FORMING A LAMINATED THERMOPLASTIC ARTICLE COMPRISING HEATING A MANDREL TO ABOVE THE SOFTENING TEMPERATURE OF SAID THERMOPLASTIC, INSERTING THE HEATED MANDREL INTO A BED OF POWDERED THERMOPLASTIC POLYMER THEREBY CAUSING THE POLYMER TO FUSE ON SAID MANDREL, INSERTING THE THUS TREATED MANDREL INTO THE CAVITY OF A MATCHED MOLD CONTAINING A POLYMERIC MATERIAL WITH SUFFICIENT FORCE TO CAUSE SAID MATERIAL TO FLOW AROUND SAID COATED MANDREL AND FORM SAID ARTICLE, AND THEREAFTER RECOVERING THE THUS FORMED ARTICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |