Patent US2116748A successfully refreshed from Google Patents.
US2116748A
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Apparatus for treating gases
Assignee: General Chemical Corp
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Filing: 1936-01-31
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Granted: 1938-05-10
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Expires: 1956-01-31
Abstract
No abstract record available.
Inventors
- 👤 Bernard M Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:34
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; B01J; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/0015; B01J2219/00155
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) | 1941-05-09 | 1941-11-08 | 1942-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-09 | 1945-11-08 | 1946-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-09 | 1949-11-08 | 1950-05-10 | $7700.00 | Window Closed / Lapsed |