Patent US3529558A successfully refreshed from Google Patents.
US3529558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and mechanical equipment for the concomitant incineration of solid refuse and aqueous sewage sludge
Assignee: Von Roll AG
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Filing: 1968-11-22
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Granted: 1970-09-22
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Expires: 1988-11-22
Abstract
No abstract record available.
Inventors
- 👤 Richard Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:44
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/008; C; C02; C02F; C02F11/00; C02F11/12; C02F11/13
Claims Analysis
Total Claims: 0
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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) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |