US2765259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil reclaiming apparatus
Assignee: Individual
•
Filing: 1954-02-16
•
Granted: 1956-10-02
•
Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 William C Schwalge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:21
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
IN AN OIL RECLAIMING APPARATUS, AN EVAPORATING CHAMBER HAVING AN UPPER AND LOWER FLOOR LEVEL, MEANS FOR HEATING SAID CHAMBER AND FOR CONCENTRATING THE HEAT IN THE AREA OF SAID UPPER FLOOR LEVEL, MEANS FOR ADMITTING OIL TO EITHER OF SAID FLOOR LEVELS, MEANS FOR VARYING THE AMOUNT OF OIL ADMITTED TO EACH FLOOR LEVEL, AN OUTLET PORT ADJACENT SAID LOWER FLOOR LEVEL, AND A VENT COMMUNCIATING WITH SAID CHAMBER.
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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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |