Patent US1979379A successfully refreshed from Google Patents.
US1979379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc-base white pigment and process of making the same
Assignee: Individual
•
Filing: 1931-01-16
•
Granted: 1934-11-06
•
Expires: 1951-01-16
Abstract
No abstract record available.
Inventors
- 👤 Henry A Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:44
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/04; C09C1/043; C01; C01P; C01P2004/00; C01P2004/50; C01P2004/80; C01P2004/82; C01P2004/84; C01P2004/86; C01P2006/00; C01P2006/19; C01P2006/60; C01P2006/90
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-11-05 | 1938-05-07 | 1938-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-05 | 1942-05-07 | 1942-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-05 | 1946-05-07 | 1946-11-06 | $7700.00 | Window Closed / Lapsed |