US2920831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel atomizing nozzle
Assignee: Individual
•
Filing: 1957-02-28
•
Granted: 1960-01-12
•
Expires: 1977-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Wadsworth J Johnsyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:40
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/38; F23D11/383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326488A
Cited
US1644372A
Cited
US2079430A
Cited
US2092519A
Cited
US2345402A
Cited
US2595566A
Cited
US2660474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |