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US2816596A
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Dielectric heat sealing method and apparatus
Assignee: Fenwal Laboratories Inc
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Filing: 1955-08-09
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Granted: 1957-12-17
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Expires: 1975-08-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward Sohier Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:18
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5326; B29C66/53261; B29C66/53262; B29C66/63; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81431; B29C66/84; B29C66/843; B29C66/8432; H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; B29C66/70; B29C66/71; B29C66/818; B29C66/8187; B29C66/81871; B29C66/83; B29C66/832; B29C66/8322; B29C66/90; B29C66/91; B29K; B29K2027/00; B29K2027/06; B29L; B29L2031/00; B29L2031/712; B29L2031/7148; Y; Y10; Y10S; Y10S128/00; Y10S128/24
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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |