Patent JPS5932154A successfully refreshed from Google Patents.
US3544407A
Expired / Lapsed
US
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Method for forming a heat-sealed end seam in a plastic tube
Assignee: Windmoeller and Hoelscher KG
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Filing: 1967-06-15
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Granted: 1970-12-01
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Expires: 1987-06-15
Abstract
No abstract record available.
Inventors
- 👤 Kurt Rochla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:44
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/836; B29C65/00; B29C65/02; B29C65/14; B29C65/1429; B29C65/1454; B29C65/1458; B29C65/1464; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7888; B29C65/7894; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/834; B29C66/8351; B29C66/83531; B29C65/7873; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1005
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |