US3814783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing sterile containers
Assignee: EP Remy et Cie SARL
•
Filing: 1972-02-02
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Granted: 1974-06-04
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Expires: 1992-02-02
Abstract
Abstract Method of manufacturing sealingly closed plastic containers. An extruded parison is maintained with its interior in communication with a source of sterile gas under a constant pressure slightly higher than atmospheric. A vacuum is created in the region of a mold surrounding the parison while the parison remains in permanent communication with the source of sterile gas under pressure, the vacuum shaping the parison against the mold. The top of the formed container is sealed and the container is discharged from the mold.
Inventors
- 👤 E Dardaine
- 👤 J Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:17
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/48; B29C49/50; B29C49/02; B29C49/04; B29C49/46; B29C49/4802; B29C49/4817; B29C2049/4602; B29C2049/4605; B29C2049/4608; B29C2791/00; B29C2791/004; B29C2791/005; B29C49/42414; B29C49/4273; B29C49/428; B29C49/42802
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |