Patent US2666472A successfully refreshed from Google Patents.
US2666472A
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Apparatus for making heat sealed ruffled articles
Assignee: Union Carbide Corp
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Filing: 1950-10-18
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Granted: 1954-01-19
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Expires: 1970-10-18
Abstract
No abstract record available.
Inventors
- 👤 Lee C Hosfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:23
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; A; A41; A41D; A41D27/00; A41D27/24; A41D27/245; B29C53/00; B29C53/36; B29C65/78; B29C65/7841; B29C65/7858; B29C65/7888; B29C65/7891; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/70; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/82263; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/845; B29C66/71; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/818; B29C66/8187; B29C66/81871; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737; Y10T156/1739
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2427372A
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US2555409A
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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) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |