US3551954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container forming apparatus
Assignee: Sterling Extruder Corp
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Filing: 1969-04-03
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Granted: 1971-01-05
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Expires: 1989-04-03
Abstract
Abstract APPARATUS FOR FORMING A CUP-SHAPED, FLANGE CONTAINER FROM MOLDABLE MATERIAL INCLUDING A DIE MEMBER FOR FORMING A THICKENED FLANGE PORTION HAVING A THICKNESS GREATER THAN THE THICKNESS OF THE MOLDABLE MATERIAL, AND FORMING MECHANISM FOR FORMING THE PORTION OF THE MOLDABLE MATERIAL DISPOSED INWARDLY OF THE FLANGE INTO A CUP-SHAPED CONFIGURATION WITHOUT DISTURBING THE FLANGE.
Inventors
- 👤 Edward Rolland Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/04; B29C51/26; B29C51/30; B29C51/306; B29C51/10
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |