Patent US3367261A successfully refreshed from Google Patents.
US3367261A
Expired / Lapsed
US
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Apparatus for continuous heat-sealing of thermoplastic sheets
Assignee: Individual
•
Filing: 1965-08-16
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Granted: 1968-02-06
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Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 Kashiwagi Kimifumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:50
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C65/00; B29C65/02; B29C65/18; B29C66/01; B29C66/03; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/812; B29C66/8126; B29C66/81261; B29C66/818; B29C66/8187; B29C66/81871; B29C66/83; B29C66/834; B29C66/8341; B29C66/83421; B29C66/83423; B29C43/00; B29C43/32; B29C43/44; B29C43/48; B29C2043/483; B29C66/814; B29C66/8145; B29C66/81463; B29C66/81465; B29C66/8181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |