US3026233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic heat sealing polyurethane foam
Assignee: Scholl Manufacturing Co Inc
•
Filing: 1959-01-07
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Granted: 1962-03-20
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Expires: 1979-01-07
Abstract
No abstract record available.
Inventors
- 👤 William M Scholl
- 👤 Lawrence C Pendergast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:16
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B26; B26F; B26F3/00; B26F3/06; B29C65/04; B29C65/72; B29C65/74; B29C65/743; B29C65/7441; B29C66/00; B29C66/004; B29C66/0042; B29C66/0044; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/244; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/71; B29C66/712; B29C66/72; B29C66/727; B29C66/73; B29C66/739; B29C66/7392; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/814; B29C66/8141; B29C66/81427; B29C66/8145; B29C66/81457; B29C66/83; B29C66/832; B29C66/8322; B32; B32B; B32B27/00; B29C65/24; B29C65/30; B29C65/305; B29C66/8122; B29C66/81411; B29C66/81415; B29C66/81419; B29K; B29K2027/00; B29K2027/06; B29K2067/00; B29K2075/00; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/48; B29L2031/4807; B29L2031/4835; B29L2031/50; B29L2031/504; B29L2031/505; B29L2031/507; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/12; Y10T156/1313; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
THE METHOD OF HEAT AND TEAR SEALING POLYURETHANE FOAM TO A VINYL FILM, INCLUDING THE STEPS OF SUPERPOSING A SHEET OF POLYURETHANE FOAM AND A SHEET OF VINYL FILM ON AN ELECTRODE, PREHEATING ABOVE 200* F. AN ELECTRODE DIE SHAPED TO DEFINE THE ENTIRE OUT EDGE OF A DESIRED ARTICLE,
References Cited (Backward Citations)
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US2878153A
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US2914109A
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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) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |