Patent US2603832A successfully refreshed from Google Patents.
US2603832A
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Rotary drum apparatus and means for preventing material being treated from accumulating thereon
Assignee: Noranda Inc
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Filing: 1951-06-20
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Granted: 1952-07-22
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Expires: 1971-06-20
Abstract
No abstract record available.
Inventors
- 👤 Charles W Clark
- 👤 Bernard H Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:40
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/06; B; B01; B01F; B01F29/00; B01F29/40; B01F29/401; B01F29/402; B01F29/4023; B01J; B01J2/00; B01J2/12; B01J2/30; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406; F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/0463; F27; F27B; F27B7/00; Y; Y10; Y10S; Y10S241/00; Y10S241/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |