US3278664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing hollow bodies from thermoplastic materials
Assignee: Individual
•
Filing: 1962-09-14
•
Granted: 1966-10-11
•
Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Langecker Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF PRODUCING A HOLLOW BODY HAVING A NECK PORTION FROM A BLANK OF PLASTIC MATERIAL, COMPRISING EXTRUDING A TUBULAR MEMBER CLOSING A PAIR OF DIE MEMBERS HAVING A BODY PORTION AND NECK PORTION WHICH FORM A MOLD CAVITY ABOUT SAID TUBULAR MEMBER SO THAT THE NECK PORTION OF SAID DIE MEMBERS PINCH A PORTION OF SAID TUBULAR MEMBER BETWEEN THE PARTING LINE OF SAID DIE MEMBERS, AND THEN PRESSING INWARDLY THE PINCHED MATERIAL TOWARD THE NECK PORTION OF THE MOLD CAVITY, AND THEN BLOWING THE REMAINDER OF THE TUBULAR MEMBER AGAINST THE BODY PORTION OF SAID DIE MEMBERS.
Claim 2
Independent Claim
100 words
A METHOD OF PRODUCING A HOLLOW BODY HAVING A NECK PORTION FROM A BLANK OF PLASTIC MATERIAL, COMPRISING EXTRUDING A TUBULAR MEMBER CLOSING A PAIR OF DIE MEMBERS HAVING A BODY PORTION AND NECK PORTION WHICH FORM A MOLD CAVITY ABOUT SAID TUBULAR MEMBER SO THAT THE NECK PORTION OF SAID DIE MEMBERS PINCH A PORTION OF SAID TUBULAR MEMBER BETWEEN THE PARTING LINE OF SAID DIE MEMBERS, AND THEN PRESSING INWARDLY THE PINCHED MATERIAL TOWARD THE NECK PORTION OF THE MOLD CAVITY, AND THEN BLOWING THE REMAINDER OF THE TUBULAR MEMBER AGAINST THE BODY PORTION OF SAID DIE MEMBERS.
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |