US3397633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sealing device
Assignee: Individual
•
Filing: 1965-10-15
•
Granted: 1968-08-20
•
Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Harris Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:33
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C66/00; B29C66/01; B29C66/349; B29C66/3494; B29C66/80; B29C66/81; B29C66/818; B29C66/8181; B29C66/83; B29C66/832; B29C66/8322; B29C66/90; B29C66/91; B29C66/912; B29C66/9121; B29C66/91211; B29C66/91212; B29C66/91231; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91431; B29C66/9161; B29C66/91641; B29C66/91651; B29C66/91655; B29C35/00; B29C35/02; B29C2035/0216; B29C66/82; B29C66/824; B29C66/8242; F; F25; F25B; F25B21/00; F25B21/02; F25B21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3029178A
Cited
US3047051A
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US3139816A
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US3207159A
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US3133539A
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US3234595A
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US3309881A
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US3282267A
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US3256920A
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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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |