US2738178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas washer
Assignee: SP Kinney Engineers Inc
•
Filing: 1951-01-11
•
Granted: 1956-03-13
•
Expires: 1971-01-11
Abstract
No abstract record available.
Inventors
- 👤 Selwyne P Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:03
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR421905A
Cited
GB191115291A
Cited
US1173187A
Cited
US1360928A
Cited
US1676451A
Cited
US2039540A
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US2234385A
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US2542681A
Cited
US2523126A
Cited
US2608398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |