US1650129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of degassing water
Assignee: Babcock and Wilcox Co
•
Filing: 1919-06-13
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Granted: 1927-11-22
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Expires: 1939-06-13
Abstract
No abstract record available.
Inventors
- 👤 David S Jacobus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:30
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0047; C; C02; C02F; C02F1/00; C02F1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-11-21 | 1931-05-23 | 1931-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-11-21 | 1935-05-23 | 1935-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-11-21 | 1939-05-23 | 1939-11-22 | $7700.00 | Window Closed / Lapsed |