US2386445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter
Assignee: Baker Petrolite LLC
•
Filing: 1942-01-26
•
Granted: 1945-10-09
•
Expires: 1962-01-26
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Keiser Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:19
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/17; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/14; C07D233/16; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-10-08 | 1949-04-09 | 1949-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-08 | 1953-04-09 | 1953-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-08 | 1957-04-09 | 1957-10-09 | $7700.00 | Window Closed / Lapsed |