US3006436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air washer
Assignee: S & C Manufacturing Co
•
Filing: 1958-04-09
•
Granted: 1961-10-31
•
Expires: 1978-04-09
Abstract
No abstract record available.
Inventors
- 👤 Herman S Starbuck
- 👤 Howard E Liebelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:45
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/14; B01D45/00; B01D45/04; B01D45/08; B01D45/10; F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F6/00; F24F6/12; F24F2003/1458; F24F6/14; F24F2006/146; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937265A
Cited
US1966280A
Cited
AU230731A
Cited
GB431309A
Cited
GB526609A
Cited
US2253261A
Cited
US2360669A
Cited
US2633929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |