Patent US2081322A successfully refreshed from Google Patents.
US2081322A
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Process and apparatus for conducting chemical reactions
Assignee: Shell Development Co
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Filing: 1930-10-08
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Granted: 1937-05-25
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Expires: 1950-10-08
Abstract
No abstract record available.
Inventors
- 👤 Samuel C Carney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:27
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; B; B01; B01J; B01J19/00; B01J19/0053; B01J19/006; B01J19/08; B01J19/12; B01J19/122; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/0009; B01J2219/00101; B01J2219/00105; B01J2219/0011; B01J2219/00162; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/00777; Y; Y10; Y10S; Y10S203/00; Y10S203/06
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) | 1940-05-24 | 1940-11-23 | 1941-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-05-24 | 1944-11-23 | 1945-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-05-24 | 1948-11-23 | 1949-05-25 | $7700.00 | Window Closed / Lapsed |