US2464304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and shaft kiln for burning, calcining, or sintering, granulated or briquetted materials
Assignee: Individual
•
Filing: 1945-02-08
•
Granted: 1949-03-15
•
Expires: 1965-02-08
Abstract
No abstract record available.
Inventors
- 👤 Gottlieb Steven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:55
CPC Classifications
F; F27; F27B; F27B1/00; F27B1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US740360A
Cited
US865659A
Cited
US1893913A
Cited
US2002496A
Cited
US2194454A
Cited
FR828944A
Cited
US2199384A
Cited
US2222585A
Cited
US2345067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |