Patent US3231449A successfully refreshed from Google Patents.
US3231449A
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Apparatus for sealing thermoplastic material
Assignee: EIDP Inc
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Filing: 1964-07-14
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Granted: 1966-01-25
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Tomson Richard Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:08
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81461; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C65/7888; B29C65/7894; B29C66/004; B29C66/0042; B29C66/0044; B29C66/00441; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/343; B29C66/344; B29C66/40; B29C66/41; B29C66/43; B29C66/81453; B29C66/81457; B29C66/816; B29C66/8161; B29C66/83; B29C66/834; B29C66/8341; B29C66/83421; B29C66/83423; B29C66/0046; B29C66/00461; B29C66/70; B29C66/71; B29C66/812; B29C66/8122; B29C66/8126; B29C66/81261; B29C66/81463; B29C66/81465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2107249A
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US2379500A
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US2384014A
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US2438685A
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US2516280A
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US2490111A
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US2535171A
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |