USRE22454E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black and the process of making same
Assignee: Binney & Smith Co
•
Filing: 1943-01-06
•
Granted: 1944-03-07
•
Expires: 1963-01-06
Abstract
No abstract record available.
Inventors
- 👤 William B. Wiegand
- 👤 Louis J. Venuto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:52
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C09C1/40; C09C1/42; C09C3/00; C09C3/04; C09C3/045; C01; C01P; C01P2004/00; C01P2004/20; C01P2004/50; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
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) | 1947-03-07 | 1947-09-06 | 1948-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-07 | 1951-09-06 | 1952-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-07 | 1955-09-06 | 1956-03-07 | $7700.00 | Window Closed / Lapsed |