US2906511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas washing apparatus
Assignee: Ajem Laboratories Inc
•
Filing: 1956-05-01
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Granted: 1959-09-29
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Expires: 1976-05-01
Abstract
No abstract record available.
Inventors
- 👤 Umbricht Emil
- 👤 Evans Dewey
- 👤 Steenhagen Gerrit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:36
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; B05; B05B; B05B14/00; B05B14/40; B05B14/46; B05B14/465; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10S; Y10S261/00; Y10S261/54; Y10S55/00; Y10S55/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |