US3169272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making plastic tubing
Assignee: ConocoPhillips Co
•
Filing: 1962-10-30
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Granted: 1965-02-16
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Orwin G Maxson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:55
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/90; B29C48/901; B29C48/903; B29C48/03; B29C48/09; B29C48/10; B29C48/885; B29C48/905; B29C48/911; B29C48/9115; B29C48/912; B29C48/919; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
APPARATUS FOR FORMING PLASTIC MATERIAL WHICH COMPRISES: MEANS FOR FORMING A PLASTIC SUBSTANCE INTO HEAT-SOFTENED TUBING, SAID MEANS INCLUDING A VENT COMMUNICATING WITH THE INTERIOR OF THE HEAT-SOFTENED TUBING AND WITH THE ATMOSPHERE, MEANS ADJACENT SAID FORMING MEANS FOR SHAPING THE HEAT-SOFTENED TUBING, SAID SHAPING MEANS INCLUDING MEANS FOR EQUALIZING PRESSURE BETWEEN THE INTERIOR AND EXTERIOR OF SAID SHAPING MEANS A SUBSTANTIALLY GAS-TIGHT CHAMBER SURROUNDING AT LEAST A PORTION OF SAID SHAPING MEANS FOR HOLDING FLUID FOR COOLING THE TUBING; AND MEANS COMMUNICATING WITH THE INTERIOR OF SAID CHAMBER FOR CREATING A ZONE OF SUBATMOSPHERIC PRESSURE WITHIN AT LEAST A PORTION OF SAID CHAMBER.
Claim 2
Dependent Claim
104 words
APPARATUS FOR FORMING PLASTIC MATERIAL WHICH COMPRISES: MEANS FOR FORMING A PLASTIC SUBSTANCE INTO HEAT-SOFTENED TUBING, SAID MEANS INCLUDING A VENT COMMUNICATING WITH THE INTERIOR OF THE HEAT-SOFTENED TUBING AND WITH THE ATMOSPHERE, MEANS ADJACENT SAID FORMING MEANS FOR SHAPING THE HEAT-SOFTENED TUBING, SAID SHAPING MEANS INCLUDING MEANS FOR EQUALIZING PRESSURE BETWEEN THE INTERIOR AND EXTERIOR OF SAID SHAPING MEANS A SUBSTANTIALLY GAS-TIGHT CHAMBER SURROUNDING AT LEAST A PORTION OF SAID SHAPING MEANS FOR HOLDING FLUID FOR COOLING THE TUBING; AND MEANS COMMUNICATING WITH THE INTERIOR OF SAID CHAMBER FOR CREATING A ZONE OF SUBATMOSPHERIC PRESSURE WITHIN AT LEAST A PORTION OF SAID CHAMBER.
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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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |