US2978997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the continuous combustion of refuse and the like
Assignee: Individual
•
Filing: 1957-11-13
•
Granted: 1961-04-11
•
Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Edgar M Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:08
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/44; F23G5/442; F23G5/444; F23G5/02; F23K; F23K3/00; F23K2203/00; F23K2203/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1478875A
Cited
US1840374A
Cited
US1772285A
Cited
US1782996A
Cited
US2014796A
Cited
US2386336A
Cited
US2684754A
Cited
US2763220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |