US3472185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for destroying sludge
Assignee: General Incinerators of California Inc
•
Filing: 1967-07-18
•
Granted: 1969-10-14
•
Expires: 1987-07-18
Abstract
No abstract record available.
Inventors
- 👤 Roy B Burden Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:27
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3124086A
Cited
US2535730A
Cited
US2932712A
Cited
US3357375A
Cited
US3322079A
Cited
US3395654A
Cited
US3366080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |