Patent US2999080A successfully refreshed from Google Patents.
US2999080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified kaolin as a polyester resin filler
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1958-12-09
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Granted: 1961-09-05
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Expires: 1978-12-09
Abstract
No abstract record available.
Inventors
- 👤 James R Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:14
CPC Classifications
C; C04; C04B; C04B20/00; C04B20/10; C04B20/1018; C04B20/1022; C08; C08K; C08K9/00; C08K9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS OF PREPARING A MODIFIED KAOLIN CLAY SUITABLE FOR USE AS A FILLER FOR POLYMERIZABLE UNSATURATED POLYCARBOXYLIC ACID-POLYHYDROXY ALCOHOL POLYESTER RESIN COMPOSITIONS COMPRISING COATING KAOLIN CLAY WITH AN ORGANIC CATIONIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALKYL AMINES HAVING FROM 4 TO 8 CAR-
Claim 2
Dependent Claim
47 words
A PROCESS OF PREPARING A MODIFIED KAOLIN CLAY SUITABLE FOR USE AS A FILLER FOR POLYMERIZABLE UNSATURATED POLYCARBOXYLIC ACID-POLYHYDROXY ALCOHOL POLYESTER RESIN COMPOSITIONS COMPRISING COATING KAOLIN CLAY WITH AN ORGANIC CATIONIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALKYL AMINES HAVING FROM 4 TO 8 CAR-
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |