Patent US3075627A successfully refreshed from Google Patents.
Patent US2335853A successfully refreshed from Google Patents.
US2335853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverizing system
Assignee: Foster Wheeler Inc
•
Filing: 1940-08-03
•
Granted: 1943-12-07
•
Expires: 1960-08-03
Abstract
No abstract record available.
Inventors
- 👤 Frisch Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:12
CPC Classifications
B; B02; B02C; B02C25/00; F; F23; F23K; F23K3/00; F23K2203/00; F23K2203/006
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) | 1946-12-06 | 1947-06-07 | 1947-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-12-06 | 1951-06-07 | 1951-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-12-06 | 1955-06-07 | 1955-12-07 | $7700.00 | Window Closed / Lapsed |