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US2820675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle construction
Assignee: Individual
•
Filing: 1956-02-06
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Granted: 1958-01-21
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Carl S Zilk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:55
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/14; B05B1/18; B05B1/30; B05B1/3033; B05B1/3086; B05B1/188; B05B1/1887; B05B1/1896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |