Patent US2138048A successfully refreshed from Google Patents.
US2138048A
Expired / Lapsed
US
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Making dry, free-running pigment powders
Assignee: HARMON COLOR WORKS Inc
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Filing: 1935-03-04
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Granted: 1938-11-29
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Expires: 1955-03-04
Abstract
No abstract record available.
Inventors
- 👤 Vesce Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:00
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0092; C09B67/0095; C09B67/0001; C09B67/0003; C09B67/0096; C09C; C09C3/00; C09C3/04; C09C3/043; C01; C01P; C01P2006/00; C01P2006/20
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) | 1941-11-28 | 1942-05-30 | 1942-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-28 | 1946-05-30 | 1946-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-28 | 1950-05-30 | 1950-11-29 | $7700.00 | Window Closed / Lapsed |