US3036822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kiln with built-in heat exchanger
Assignee: FLSmidth and Co AS
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Filing: 1960-04-14
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Granted: 1962-05-29
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Expires: 1980-04-14
Abstract
No abstract record available.
Inventors
- 👤 Andersen Niels Edvard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:28
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/14; F27B7/16; F27B7/167; F27B7/02; F27B7/04; F27B2007/046; F27D; F27D1/00; F27D1/04; F27D1/14; F27D1/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |