US3655477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making heat-sealed articles
Assignee: Scholl Manufacturing Co Inc
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Filing: 1970-02-12
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Granted: 1972-04-11
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Expires: 1990-02-12
Abstract
Abstract A method of electronically heat sealing thermoplastic flexible cover material to a more rigid backing member to form a panellike article, the method being such that the article is shaped over the side edge of the backing member and heat-sealed to that side edge, leaving only the rear face of the backing member exposed.
Inventors
- 👤 Carl W Scholl
- 👤 Milo L Raffaelli Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/004; B26; B26F; B26F3/00; B26F3/06; B29C63/00; B29C63/02; B29C63/04; B29C65/00; B29C65/02; B29C65/04; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/133; B29C66/40; B29C66/41; B29C66/43; B29C66/436; B29C2793/00; B29C66/137; B29C66/70; B29C66/71; B29C66/72; B29C66/723; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1011; Y10T156/1034; Y10T156/1052; Y10T156/1054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3068138A
Cited
US3202561A
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US3389033A
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US3466214A
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US3318636A
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US3520754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |