Patent US3208984A successfully refreshed from Google Patents.
US3208984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosolids
Assignee: Union Oil Company of California
•
Filing: 1962-11-05
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Granted: 1965-09-28
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Henri G G Dekking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:54
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/04; C08F2/00; C08F2/44; C08F292/00; C08L; C08L67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
THE METHOD OF PROPAGATING AN ORGANIC POLYMER FROM THE SURFACE OF ANION EXCHANGE SOLID POSSESSING AN ION EXCHANGE CAPACITY OF AT LEAST 0.1 MILLIEQUIVALENT PER 100 GRAMS WHICH COMPRISES REACTING AN ORGANIC COMPOUND HAVING THE FOLLOWING STRUCTURE:
Claim 2
Independent Claim
37 words
THE METHOD OF PROPAGATING AN ORGANIC POLYMER FROM THE SURFACE OF ANION EXCHANGE SOLID POSSESSING AN ION EXCHANGE CAPACITY OF AT LEAST 0.1 MILLIEQUIVALENT PER 100 GRAMS WHICH COMPRISES REACTING AN ORGANIC COMPOUND HAVING THE FOLLOWING STRUCTURE:
References Cited (Backward Citations)
US2520339A
Cited
US2951087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |