US3570057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustment of volume of blow molded containers and mold for so doing
Assignee: Phillips Petroleum Co
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Filing: 1968-05-24
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Granted: 1971-03-16
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Expires: 1988-05-24
Abstract
Abstract THE BOTTOM OF A MOLD IS PROVIDED WITH MEANS PERMITTING THE CONTAINER BOTTOM TO BE MOLDED TO DIFFERENT CONTOURS OR SHAPES OR CONCAVITIES BY PROVIDING A REMOVABLE AND REPLACEABLE OR INTERCHANGEABLE BOTTOM OR MOLD INSERT WHICH CAN BE VARIED. THE INSERT ALSO SERVES AS THE PINCH OFF. A DISC-SHAPED OR ANNULAR-SHAPED INSERT, WHICH AN BE MADE ADJUSTABLE SO THAT SMALL VOLUME CHANGES CAN BE MADE WITHOUT CHANGING INSERTS, IS PROVIDED ALSO.
Inventors
- 👤 Robert Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:40
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/48
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |