US2501977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decomposing emulsified waste sludges
Assignee: Individual
•
Filing: 1946-02-11
•
Granted: 1950-03-28
•
Expires: 1966-02-11
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Wallerstedt
- 👤 Lintz Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:26
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR INCINERATING A WASTE OIL SLUDGE CONTAINING OIL, WATER AND NON-COMBUSTIBLE SOLIDS, THE PROCESS COMPRISING MIXING THE SLUDGE WITH FROM ABOUT 10% TO ABOUT 45% OF DISCRETE CARRIER PARTICLES OF A SIZE BETWEEN ABOUT 4 MESH AND ABOUT 80 MESH, AND SUBJECTING SAID MIXTURE TO INCINERATION TO EVAPORATE THE WATER PRESENT IN
Claim 2
Dependent Claim
54 words
A PROCESS FOR INCINERATING A WASTE OIL SLUDGE CONTAINING OIL, WATER AND NON-COMBUSTIBLE SOLIDS, THE PROCESS COMPRISING MIXING THE SLUDGE WITH FROM ABOUT 10% TO ABOUT 45% OF DISCRETE CARRIER PARTICLES OF A SIZE BETWEEN ABOUT 4 MESH AND ABOUT 80 MESH, AND SUBJECTING SAID MIXTURE TO INCINERATION TO EVAPORATE THE WATER PRESENT IN
References Cited (Backward Citations)
US1660434A
Cited
US1818901A
Cited
US1976528A
Cited
US2033010A
Cited
US2046756A
Cited
US1972454A
Cited
US2102427A
Cited
US2042058A
Cited
US1974698A
Cited
US1987870A
Cited
US2258438A
Cited
US2430182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |