US2904323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling devices for the cement clinkers
Assignee: CEMENTIR CEMENTERIE DEL TIRREN
•
Filing: 1957-04-05
•
Granted: 1959-09-15
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Cova Fedele
- 👤 Amicis Sergio De
- 👤 Cesareni Cesare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:17
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F27D15/0213; F27D17/00; F27D17/20; F27D17/22; F27D17/25; F27D3/00; F27D2003/0001; F27D2003/0006; F27D2003/0009; F27D7/00; F27D7/04; F27D2007/045; F27D15/022; F27D2015/0233; F27D2015/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US127727A
Cited
US1420593A
Cited
GB296221A
Cited
US1837836A
Cited
US2346500A
Cited
US2587378A
Cited
US2750681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |