US2498718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air washer
Assignee: DETROIT SHEET METAL WORKS
•
Filing: 1945-09-20
•
Granted: 1950-02-28
•
Expires: 1965-09-20
Abstract
No abstract record available.
Inventors
- 👤 Wedworth V Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:27
CPC Classifications
B; B05; B05B; B05B14/00; B05B14/40; B05B14/46; B05B14/465; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1434301A
Cited
US1564075A
Cited
US2234735A
Cited
US2197004A
Cited
US2227465A
Cited
US2316491A
Cited
US2353548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |