US3179387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas washing apparatus
Assignee: Ajem Laboratories Inc
•
Filing: 1959-09-17
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Granted: 1965-04-20
•
Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Umbricht Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:45
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06; F; F27; F27D; F27D17/00; F27D17/20; F27D17/22; Y; Y10; Y10S; Y10S261/00; Y10S261/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1963122A
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US1952269A
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US2254600A
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US2599202A
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US2573521A
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US2621754A
Cited
US2767965A
Cited
US2805844A
Cited
US2889005A
Cited
US2796241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |