US2253471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of titanium bearing materials
Assignee: PPG Industries Inc
•
Filing: 1940-02-08
•
Granted: 1941-08-19
•
Expires: 1960-02-08
Abstract
No abstract record available.
Inventors
- 👤 Irving E Muskat
- 👤 Robert H Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:48
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/08; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1222; Y; Y02; Y02P; Y02P10/00; Y02P10/20
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) | 1944-08-18 | 1945-02-17 | 1945-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-18 | 1949-02-17 | 1949-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-18 | 1953-02-17 | 1953-08-19 | $7700.00 | Window Closed / Lapsed |