Patent US2079017A successfully refreshed from Google Patents.
US2079017A
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US
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Apparatus for heating materials
Assignee: General Chemical Corp
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Filing: 1933-10-18
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Granted: 1937-05-04
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Expires: 1953-10-18
Abstract
No abstract record available.
Inventors
- 👤 Iddings Carl
- 👤 George S Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:04
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/04; C; C01; C01B; C01B32/00; C01B32/70; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/18; B01J2219/185
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) | 1940-05-03 | 1940-11-02 | 1941-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-05-03 | 1944-11-02 | 1945-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-05-03 | 1948-11-02 | 1949-05-04 | $7700.00 | Window Closed / Lapsed |