US3217072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making plastic articles
Assignee: OI Glass Inc
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Filing: 1964-02-26
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Granted: 1965-11-09
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Expires: 1984-02-26
Abstract
No abstract record available.
Inventors
- 👤 Wilbur A Schaich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:04
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/42394; B29C49/42396; B26; B26D; B26D3/00; B26D3/16; B29C48/00; B29C48/001; B29C48/0022; B29C49/02; B29C49/04; B29C49/0411; B29C49/04114; B29C49/58; B29C2049/5862; B29C2049/5868; B29C2049/5886; B29C2793/00; B29C2793/0027; B29C2793/0081; B29C48/0018; B29C48/03; B29C48/09; B29C48/10; B29C49/56; B29C49/5606; B29C61/00; B29C61/02; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2995/00; B29K2995/0037; B29K2995/0049; Y; Y10; Y10S; Y10S425/00; Y10S425/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF FORMING TAIL-FREE HOLLOW PLASTIC ARTICLES BY EXPANDING IN A PARTIBLE BLOW MOLD A TUBULAR FORMATION OF HEATED THERMOPLASTIC MATERIAL COMPRISING THE STEPS OF SEVERING A LENGTH OF SAID TUBULAR FORMATION IN EXCESS OF THE LENGTH OF THE CAVITY OF SAID BLOW MOLD, SEALING ONE END OF SAID NUCLEAR FORMATION, PERMITTING SAID TUBULAR FORMATION TO AXIALLY SHRINK SO THAT SAID SEALED END WILL BE WITHIN THE BLOW MOLD CAVITY, CLOSING SAID BLOW MOLD ON SAID TUBULAR PORTION WITHOUT PINCHING SAID SEALED
Claim 2
Independent Claim
83 words
THE METHOD OF FORMING TAIL-FREE HOLLOW PLASTIC ARTICLES BY EXPANDING IN A PARTIBLE BLOW MOLD A TUBULAR FORMATION OF HEATED THERMOPLASTIC MATERIAL COMPRISING THE STEPS OF SEVERING A LENGTH OF SAID TUBULAR FORMATION IN EXCESS OF THE LENGTH OF THE CAVITY OF SAID BLOW MOLD, SEALING ONE END OF SAID NUCLEAR FORMATION, PERMITTING SAID TUBULAR FORMATION TO AXIALLY SHRINK SO THAT SAID SEALED END WILL BE WITHIN THE BLOW MOLD CAVITY, CLOSING SAID BLOW MOLD ON SAID TUBULAR PORTION WITHOUT PINCHING SAID SEALED
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |