US3444669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High capacity gas washer
Assignee: Ajem Laboratories Inc
•
Filing: 1967-02-03
•
Granted: 1969-05-20
•
Expires: 1987-02-03
Abstract
No abstract record available.
Inventors
- 👤 Nicholas J Panzica
- 👤 Robert M Jamison
- 👤 Emil Umbricht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; B01D47/08; B01D47/085; Y; Y10; Y10S; Y10S261/00; Y10S261/09
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |