US3562078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double walled plastic articles and method of making same
Assignee: King Seeley Thermos Co
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Filing: 1969-01-23
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Granted: 1971-02-09
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Expires: 1989-01-23
Abstract
Abstract A DOUBLE-WALLED HEAT INSULATING PLASTIC ARTICLE HAVING WALLS WHICH ARE FUSED TOGETHER BY SPIN WELDING AND WHEREIN THE WELD JOINT HAS PROVISION FOR COLLECTING AND CONFINING FLASHING WHICH COMES FROM THE BEARING SURFACES OF THE WALLS DURING THE SPIN WELDING OPERATION. D R A W I N G
Inventors
- 👤 Fred R Zumstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:24
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/001; B29C65/00; B29C65/02; B29C65/06; B29C65/0672; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1246; B29C66/12461; B29C66/12469; B29C66/1248; B29C66/50; B29C66/51; B29C66/54; B29C66/545; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81431; B29C66/82; B29C66/824; B29C66/8242; B29C66/826; B29C66/8266; B29C66/82661; B29C66/83; B29C66/832; B29C66/8322; B29L; B29L2024/00; B29L2031/00; B29L2031/712; B29L2031/7132; Y; Y10; Y10S; Y10S220/00; Y10S220/918; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |