US2514581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and atomizer for atomizing fuel oil
Assignee: Shell Development Co
•
Filing: 1947-05-27
•
Granted: 1950-07-11
•
Expires: 1967-05-27
Abstract
No abstract record available.
Inventors
- 👤 Hendrik J J Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:58
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/102; F23D11/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1400328A
Cited
US1980132A
Cited
US2044720A
Cited
US2012139A
Cited
GB516724A
Cited
US2313298A
Cited
US2303104A
Cited
US2419365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |