US2960323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft kiln
Assignee: L VON ROLL AG
•
Filing: 1954-05-26
•
Granted: 1960-11-15
•
Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
- 👤 Ludin Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:10
CPC Classifications
F; F27; F27B; F27B1/00; F27B1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US169895A
Cited
US1546521A
Cited
US1989072A
Cited
US2108118A
Cited
US2464304A
Cited
US2594799A
Cited
US2650814A
Cited
US2788961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |