US3461037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inclined rotary furnace
Assignee: Carl Still GmbH and Co KG
•
Filing: 1965-07-06
•
Granted: 1969-08-12
•
Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Johannes Knappstein
- 👤 Friedrich Thiersch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:50
CPC Classifications
C; C10; C10B; C10B1/00; C10B1/10; C10B53/00; C10B53/08; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129; Y10; Y10S; Y10S165/00; Y10S165/51; Y10S165/515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US849947A
Cited
US1842906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |