Patent US3229007A successfully refreshed from Google Patents.
US3229007A
Expired / Lapsed
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Method for blow molding of hollow articles
Assignee: Midland Ross Corp
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Filing: 1962-08-02
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Granted: 1966-01-11
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Charles J Waechter
- 👤 Kovacs Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:42
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/001; B29C48/0017; B29C48/25; B29C48/30; B29C48/32; B29C48/325; B29C48/36; B29C48/375; B29C48/388; B29C48/10; B29C48/475
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF PREFORMING A PARISON TO ANTICIPATE THE SHAPE AND DESIRED WALL THICKNESS OF A BLOWN PLASTIC ARTICLE COMPRISING AUTOMATICALLY CONTINUOUSLY REGULATING THE APPLIED PRESSURE OF A FLUID CONTROLLING THE RATE OF EXTRUSION OF AN EXPANSIBLE HEATED PLASTIC MATERIAL THROUGH A FIXED ANNULAR OPENING, MAINTAINING THE APPLIED PRESSURE CONSTANT, RESISTING THE APPLIED PRESSURE AUTOMATICALLY CONTINOUSLY VARIABLY IN ACCORDANCE WITH THE SHAPE OF A DESIRE FORMED PARISON.
Claim 2
Independent Claim
67 words
THE METHOD OF PREFORMING A PARISON TO ANTICIPATE THE SHAPE AND DESIRED WALL THICKNESS OF A BLOWN PLASTIC ARTICLE COMPRISING AUTOMATICALLY CONTINUOUSLY REGULATING THE APPLIED PRESSURE OF A FLUID CONTROLLING THE RATE OF EXTRUSION OF AN EXPANSIBLE HEATED PLASTIC MATERIAL THROUGH A FIXED ANNULAR OPENING, MAINTAINING THE APPLIED PRESSURE CONSTANT, RESISTING THE APPLIED PRESSURE AUTOMATICALLY CONTINOUSLY VARIABLY IN ACCORDANCE WITH THE SHAPE OF A DESIRE FORMED PARISON.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |