Patent US2590111A successfully refreshed from Google Patents.
US2590111A
Expired / Lapsed
US
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Fuel oil control system
Assignee: JET HEET Inc
•
Filing: 1949-01-13
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Granted: 1952-03-25
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Expires: 1969-01-13
Abstract
No abstract record available.
Inventors
- 👤 Calvin D Maccracken
- 👤 Charles W Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:11
CPC Classifications
F; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/147; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737; Y10T137/7781; Y10T137/7782
Claims Analysis
Total Claims: 0
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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) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |