Patent US2018338A successfully refreshed from Google Patents.
Patent US2084501A successfully refreshed from Google Patents.
US2084501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valuable hydrocarbon products
Assignee: IG Farbenindustrie AG
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Filing: 1933-06-20
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Granted: 1937-06-22
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Expires: 1953-06-20
Abstract
No abstract record available.
Inventors
- 👤 Otto Michael
- 👤 Mueller-Cunradi Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:56
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C08; C08F; C08F10/00; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; C07C2527/00; C07C2527/06; C07C2527/08; C10M2205/00; C10M2205/02; C10M2205/026; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
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) | 1940-06-21 | 1940-12-21 | 1941-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-21 | 1944-12-21 | 1945-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-21 | 1948-12-21 | 1949-06-22 | $7700.00 | Window Closed / Lapsed |