Patent US3540977A successfully refreshed from Google Patents.
US3540977A
Expired / Lapsed
US
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Self-adhering foam composition
Assignee: Scholl Manufacturing Co Inc
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Filing: 1968-02-29
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Granted: 1970-11-17
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Expires: 1988-02-29
Abstract
No abstract record available.
Inventors
- 👤 Erich G Schickedanz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:15
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/326; B29L; B29L2007/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989; Y10T428/26; Y10T428/266; Y10T428/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3160549A
Cited
US3223576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |