US1556098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water deaeration
Assignee: Cochrane Corp
•
Filing: 1922-11-21
•
Granted: 1925-10-06
•
Expires: 1942-11-21
Abstract
No abstract record available.
Inventors
- 👤 George H Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:53
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; Y; Y10; Y10S; Y10S159/00; Y10S159/16
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) | 1928-10-05 | 1929-04-06 | 1929-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-10-05 | 1933-04-06 | 1933-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-10-05 | 1937-04-06 | 1937-10-06 | $7700.00 | Window Closed / Lapsed |