Patent US3537885A successfully refreshed from Google Patents.
US3537885A
Expired / Lapsed
US
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Foamed article and method for the preparation thereof
Assignee: Dow Chemical Co
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Filing: 1967-01-16
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Granted: 1970-11-03
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Expires: 1987-01-16
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Moore
- 👤 Masao Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:08
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/08; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249995
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) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |