US2374741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment preparation
Assignee: PPG Industries Inc
•
Filing: 1943-03-20
•
Granted: 1945-05-01
•
Expires: 1963-03-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Gage
- 👤 Paul J Gegner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:53
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/006; C09C3/06; C09C3/08; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/80
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) | 1948-04-30 | 1948-10-30 | 1949-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-30 | 1952-10-30 | 1953-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-30 | 1956-10-30 | 1957-05-01 | $7700.00 | Window Closed / Lapsed |