Patent US3728690A successfully refreshed from Google Patents.
Patent US2665738A successfully refreshed from Google Patents.
US2665738A
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Heat-sealing apparatus for joining thermoplastic members
Assignee: Goodrich Corp
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Filing: 1950-05-15
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Granted: 1954-01-12
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Expires: 1970-05-15
Abstract
No abstract record available.
Inventors
- 👤 Norman H Caskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/2053; B29C65/2061; B29C65/2069; B29C65/2076; B29C65/14; B29C65/1429; B29C65/1432; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/733; B29C66/7332; B29C66/73321; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; B29C65/78; B29C65/7802; B29C65/7832; B29C66/90; B29C66/96; B29C66/967; B29C66/9672; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1749
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2367670A
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US2360950A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |