Patent US2902091A successfully refreshed from Google Patents.
US2902091A
Expired / Lapsed
US
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Manufacture of resilient foam with contoured face
Assignee: Wood Conversion Co
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Filing: 1956-06-15
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Granted: 1959-09-01
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Expires: 1976-06-15
Abstract
No abstract record available.
Inventors
- 👤 Donald E Dahle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:29
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/003; B26D3/28; B26D3/281; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/5654; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/0419; Y10T83/0424; Y10T83/0491; Y10T83/202; Y10T83/2074; Y10T83/2083; Y10T83/343; Y10T83/647; Y10T83/6584; Y10T83/6635; Y10T83/6636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NO83135A
Cited
US681347A
Cited
DE268978C
Cited
US1204922A
Cited
US1670514A
Cited
US1786542A
Cited
US2214461A
Cited
US2404731A
Cited
FR1113156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |