Patent US2678679A successfully refreshed from Google Patents.
US2678679A
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Bottom sealing means and method for plastic bags
Assignee: Individual
•
Filing: 1951-08-18
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Granted: 1954-05-18
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Expires: 1971-08-18
Abstract
No abstract record available.
Inventors
- 👤 Bergstein Frank David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:21
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/87; B29C66/874; B29C66/8744; B29C66/87443; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C66/01; B29C66/03; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/137; B29C66/344; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/432; B29C66/4322; B29C66/83; B29C66/836; B29C66/84; B29C66/851; B29C66/8511; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/82; B29C66/822; B29C66/8223; B29C66/834; B29C66/8341; B29C66/83421; B29C66/83423; B29L; B29L2031/00; B29L2031/712; B29L2031/7128
Claims Analysis
Total Claims: 0
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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) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |