US2932361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid gas contact device
Assignee: Individual
•
Filing: 1955-10-14
•
Granted: 1960-04-12
•
Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 William J Beringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988262A
Cited
FR49716E
Cited
US2387473A
Cited
US2427714A
Cited
US2404479A
Cited
US2431389A
Cited
US2545052A
Cited
US2609888A
Cited
US2827270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |