Patent US2309563A successfully refreshed from Google Patents.
US2572252A
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Paint compositions
Assignee: Union Carbide Corp
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Filing: 1949-03-04
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Granted: 1951-10-23
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Expires: 1969-03-04
Abstract
No abstract record available.
Inventors
- 👤 Hendrik De W Erasmus
- 👤 James B Culbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:03
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/40; C09D7/60; C09D7/61; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/28; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PIGMENTED COATING COMPOSITION COMPRISING A PAINT VEHICLE AND FINELY-DIVIDED SILICON NITRIDE SELECTED FROM THE GROUP CONSISTING OF WHITE AND GRAY SILICON NITRIDE AS A PIGMENT THEREIN.
Claim 2
Dependent Claim
27 words
A PIGMENTED COATING COMPOSITION COMPRISING A PAINT VEHICLE AND FINELY-DIVIDED SILICON NITRIDE SELECTED FROM THE GROUP CONSISTING OF WHITE AND GRAY SILICON NITRIDE AS A PIGMENT THEREIN.
References Cited (Backward Citations)
US993144A
Cited
US1102715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |