Patent US3525735A successfully refreshed from Google Patents.
US3525735A
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US
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Highly absorbent cellulose ethers
Assignee: EIDP Inc
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Filing: 1961-10-27
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Granted: 1970-08-25
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Expires: 1981-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ivan Keith Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:24
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/155; A; A61; A61F; A61F13/00; A61F13/01; A61F13/01008; A61F13/01034; A61F13/01042; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/28; D01; D01F; D01F2/00; D01F2/24; D01F2/28; A61F2013/00361; A61F2013/00902; A61F2013/0091; A61F13/15; A61F13/53; A61F2013/530481; A61F13/84; A61F2013/8488
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) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |