US2675215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzol spray scrubber
Assignee: Individual
•
Filing: 1948-06-22
•
Granted: 1954-04-13
•
Expires: 1968-06-22
Abstract
No abstract record available.
Inventors
- 👤 Otto Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:44
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; C10K1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1169764A
Cited
GB120304A
Cited
US1655171A
Cited
US1868886A
Cited
US1934600A
Cited
US1989033A
Cited
US1985010A
Cited
US2277651A
Cited
US2413238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |