Patent US3549732A successfully refreshed from Google Patents.
US3549732A
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US
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Method for separating a polymer from a solvent
Assignee: Texas Petrochemicals Corp
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Filing: 1968-09-03
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Granted: 1970-12-22
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Expires: 1988-09-03
Abstract
No abstract record available.
Inventors
- 👤 Billy D Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:40
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/14; B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052; B01D19/0057; B01J; B01J2/00; B01J2/20; B29; B29B; B29B9/00; D; D01; D01D; D01D5/00; D01D5/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3373235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |