US2835776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat sealing plastic films
Assignee: Electronic Processes Corp
•
Filing: 1954-01-18
•
Granted: 1958-05-20
•
Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 Gregory W Blessing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/82; B29C66/824; B29C66/8244; B29C66/87; B29C66/874; B29C66/8742; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/70; B29C66/71; B29C66/73; B29C66/731; B29C66/7314; B29C66/73143; B29C66/83; B29C66/832; B29C66/8322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |