Patent US3344758A successfully refreshed from Google Patents.
US3344758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the thermal decomposition of waste products
Assignee: Individual
•
Filing: 1963-12-05
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Granted: 1967-10-03
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Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Wotschke Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:04
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/08; F23G5/085
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
APPARATUS FOR THE THERMAL DECOMPOSITION OF WASTE MATERIAL COMPRISING MEANS DEFINING A SUBSTANTIALLY CYLINDRICAL FURNACE INCLUDING A CASING, AND A BODY IN SAID CASING HAVING AN ARCHED SURFACE CONSTITUTING AN UPWARDLY ARCHED ROOF FOR SAID FURNACE, SAID BODY BEING DISPOSED IN SAID CASING IN SPACED RELATION THEREWITH TO DEFINE AN UPPER PERIPHERAL ANNULAR PASSAGEWAY FOR FEEDING THE WASTE MATERIAL TO SAID FURNACE TO CAUSE THE MATERIAL TO FORM FREELY IN SAID FURNACE AN INTERIOR CONICAL SPACE OPENING UPWARDLY, SAID FURNACE HAVING A CENTRAL LOWER OUTLET, THE APPARATUS FURTHER COMPRISING A HEAT SOURCE SUBSTANTIALLY CENTRALLY LOCATED IN SAID ARCHED ROOF, AND MEANS SUPPORTING SAID BODY FOR VERTICAL DISPLACEMENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |