US3662049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oriented articles from retracted blank
Assignee: Phillips Petroleum Co
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Filing: 1969-11-13
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Granted: 1972-05-09
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Expires: 1989-11-13
Abstract
Abstract A PARISON OR OTHER PREFORM BLANK IS HEATED TO ORIENTATION TEMPERATURE, STRETCHED, ALLOWED TO CONTRACT, AND RESTRETCHED PRIOR TO INTRODUCTION FLUID PRESSURE TO EXPAND SAME OUT INTO CONFORMITY WITH A MOLD ZONE. IMPROVED CLARITY AND STRENGTH ARE ACHIEVED UTILIZING THIS TECHNIQUE.
Inventors
- 👤 Dixie E Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:21
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/002; B29C49/00; B29C49/08; B29C49/10; B29C49/14; Y; Y10; Y10S; Y10S264/00; Y10S264/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |