Patent US1738940A successfully refreshed from Google Patents.
US1738940A
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US
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Process for preparing slimes derived from wet washing of gas for sintering
Assignee: Brassert & Co
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Filing: 1927-10-27
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Granted: 1929-12-10
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Expires: 1947-10-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Boynton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:27
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/16
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) | 1932-12-09 | 1933-06-10 | 1933-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-09 | 1937-06-10 | 1937-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-09 | 1941-06-10 | 1941-12-10 | $7700.00 | Window Closed / Lapsed |