US2944914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of esterifying the surface of alumina monohydrate platelets and product thereof
Assignee: EIDP Inc
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Filing: 1959-08-17
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Granted: 1960-07-12
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Bugosh John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/032; B; B01; B01J; B01J13/00; B01J13/0052; B01J13/0069; C01; C01F; C01F7/00; C01F7/02; C07; C07F; C07F5/00; C07F5/06; C07F5/069; C08; C08K; C08K9/00; C08K9/04; C09C; C09C1/00; C09C1/40; C09C1/407; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2004/00; C01P2004/20; C01P2006/00; C01P2006/12; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
COLLOIDAL SURFACE-ESTERIFIED ALUMINA MONOHYDRATE PLATELETS, SUCH PLATELETS HAVING FROM ABOUT 10 TO 400 HYDROCARBON GROUPS PER 100 SQURE MILLIMICRONS OF SURFACE AREA.
Claim 2
Dependent Claim
22 words
COLLOIDAL SURFACE-ESTERIFIED ALUMINA MONOHYDRATE PLATELETS, SUCH PLATELETS HAVING FROM ABOUT 10 TO 400 HYDROCARBON GROUPS PER 100 SQURE MILLIMICRONS OF SURFACE AREA.
References Cited (Backward Citations)
US2744074A
Cited
US2657149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |