Patent US1876270A successfully refreshed from Google Patents.
US1876270A
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Conversion of hydrocarbons of higher boiling point into those of lower boiling point
Assignee: IG Farbenindustrie AG
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Filing: 1930-04-14
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Granted: 1932-09-06
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Expires: 1950-04-14
Abstract
No abstract record available.
Inventors
- 👤 Zorn Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:15
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; C; C10; C10G; C10G11/00; C10G11/02; C10G47/00; C10G47/02; C10G47/10; C10G47/12; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2531/00; B01J2531/30; B01J2531/40; B01J2531/50; B01J2531/56; B01J2531/60; B01J2531/62; B01J2531/70; B01J2531/80; B01J2531/84; B01J2531/847
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) | 1935-09-06 | 1936-03-07 | 1936-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-06 | 1940-03-07 | 1940-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-06 | 1944-03-07 | 1944-09-06 | $7700.00 | Window Closed / Lapsed |