US3226464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making plastic containers
Assignee: THATCHER PLASTIC PACKAGING Inc A CORP OF
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Filing: 1961-09-11
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Granted: 1965-12-28
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Robert W Saumsiegle
- 👤 Fred E Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C57/00; B29C57/10; B29D; B29D23/00; B29D23/20; B29L; B29L2001/00; B29L2023/00; B29L2023/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD OF FORMING A CIRCUMFERENTIAL END PORTION OF A HOLLOW PLASTIC CYLINDER OF THERMOPLASTIC MATERIAL TO DESIRED CONFIGURATION COMPRISING: LONGITUDINALLY CRUSHING THE SAID END PORTION INTO A PLURALITY OF FOLDS AND WRINKLES WHILE SUPPORTING INTERIORLY AND EXTERIORLY AT LEAST A PART OF THE REMAINDER OF SAID CYLINDER; AND THEREAFTER MOLDING SAID CRUSHED END PORTION INTO THE DESIRED CONFIGURATION UNDER THE INFLUENCE OF HEAT AND PRESSURE APPLIED ONLY TO THE CRUSHED END PORTION.
Claim 2
Independent Claim
73 words
A METHOD OF FORMING A CIRCUMFERENTIAL END PORTION OF A HOLLOW PLASTIC CYLINDER OF THERMOPLASTIC MATERIAL TO DESIRED CONFIGURATION COMPRISING: LONGITUDINALLY CRUSHING THE SAID END PORTION INTO A PLURALITY OF FOLDS AND WRINKLES WHILE SUPPORTING INTERIORLY AND EXTERIORLY AT LEAST A PART OF THE REMAINDER OF SAID CYLINDER; AND THEREAFTER MOLDING SAID CRUSHED END PORTION INTO THE DESIRED CONFIGURATION UNDER THE INFLUENCE OF HEAT AND PRESSURE APPLIED ONLY TO THE CRUSHED END PORTION.
References Cited (Backward Citations)
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US2900665A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |