US3792137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for forming the bottom structure of a foamed thermoplastic synthetic resin-made container
Assignee: Individual
•
Filing: 1971-02-01
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Granted: 1974-02-12
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Expires: 1991-02-01
Abstract
Abstract PROCESS AND APPARATUS FOR THE FORMATION OF A SECURE BOTTOM STRUCTURE OF A CONTAINER WHEREIN A WALL-FORMING PIECE MADE FROM FOAMED THERMOPLASTIC SYNTHETIC RESIN MATERIAL AND A MATING BOTTOM-FORMING MATERIAL MADE FROM THERMOPLASTIC OR NON-THERMOPLASTIC MATERIAL ARE SECURELY MELT JOINED OR MECHANICALLY JOINED TOGETHER TO FORM THE CONTAINER, WITH AID OF A CAULKING FORCE EXERTED ON THE TO-BE-JOINED PORTIONS OF THE WALL-FORMING PIECE AND BOTTOM-FORMING MATERIAL IN THE JOINING OPERATION.
Inventors
- 👤 J Seto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1271; B29C51/00; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/70; B29C66/71; B29K; B29K2105/00; B29K2105/25; B29K2105/253; B29K2105/256; B29L; B29L2031/00; B29L2031/712; B29L2031/7132; B31; B31B; B31B2105/00; B31B2105/002; B31B2105/0022; B31B2110/00; B31B2110/10; B31B2110/20; B31B50/00; B31B50/26; B31B50/28
Claims Analysis
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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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |