Patent US3496638A successfully refreshed from Google Patents.
US2290914A
Expired / Lapsed
US
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Coated pigment and the preparation thereof
Assignee: Individual
•
Filing: 1939-07-17
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Granted: 1942-07-28
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Expires: 1959-07-17
Abstract
No abstract record available.
Inventors
- 👤 Machlin Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:29
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/006; B; B29; B29B; B29B7/00; B29B7/02; B29B7/06; B29B7/10; B29B7/18; B29B7/183; B29B7/22; B29B7/26; B29B7/263; B29B7/266; B29B7/74; B29B7/7476; B29B7/7495; B29B7/28; B29B7/286; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 0
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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) | 1945-07-27 | 1946-01-26 | 1946-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-07-27 | 1950-01-26 | 1950-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-07-27 | 1954-01-26 | 1954-07-28 | $7700.00 | Window Closed / Lapsed |