US2519028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air treating apparatus
Assignee: Individual
•
Filing: 1945-03-31
•
Granted: 1950-08-15
•
Expires: 1965-03-31
Abstract
No abstract record available.
Inventors
- 👤 Adiel Y Dodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:43
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B04; B04C; B04C3/00; B04C3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT55275B
Cited
US1055792A
Cited
US1513528A
Cited
US1595268A
Cited
GB285928A
Cited
US1903597A
Cited
FR727050A
Cited
US1950285A
Cited
GB465897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |