Patent US2668708A successfully refreshed from Google Patents.
US2668708A
Expired / Lapsed
US
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Transfer mechanism for sealing means
Assignee: Interstate Folding Box Co
•
Filing: 1950-04-28
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Granted: 1954-02-09
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Expires: 1970-04-28
Abstract
No abstract record available.
Inventors
- 👤 Back Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:10
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/49; B29C65/00; B29C65/78; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/133; B31; B31B; B31B50/00; B31B50/02; B31B50/04; B31B50/046
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) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |