Patent US3019059A successfully refreshed from Google Patents.
US3019059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for conveying carbonaceous solids through conduits
Assignee: Dow Chemical Co
•
Filing: 1960-04-28
•
Granted: 1962-01-30
•
Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Mcmurtrie Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:56
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/30; C; C10; C10L; C10L1/00; C10L1/32; C10L1/326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
IN A PROCESS FOR TRANSPORTING FINELY DIVIDED CARBONACEOUS SOLIDS BY FORCING AN AQUEOUS SLURRY THEREOF THROUGH A CONDUIT, THE IMPROVEMENT WHICH CONSISTS IN INCORPORATING A MINOR PROPORTION OF COAL ACIDS INTO SAID SLURRY.
Claim 2
Dependent Claim
33 words
IN A PROCESS FOR TRANSPORTING FINELY DIVIDED CARBONACEOUS SOLIDS BY FORCING AN AQUEOUS SLURRY THEREOF THROUGH A CONDUIT, THE IMPROVEMENT WHICH CONSISTS IN INCORPORATING A MINOR PROPORTION OF COAL ACIDS INTO SAID SLURRY.
References Cited (Backward Citations)
US1390230A
Cited
US2610900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |