US3021609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable air discharge nozzle for a drying machine
Assignee: National Drying Machinery Co
•
Filing: 1958-04-22
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Granted: 1962-02-20
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Expires: 1978-04-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Parkes
- 👤 Charles H Schlecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/108; F26B21/00; F26B21/50; F26B21/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2495163A
Cited
US2270155A
Cited
FR872791A
Cited
FR997807A
Cited
US2682116A
Cited
US2884711A
Cited
US2894334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |