US1592126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating boiler feed water
Assignee: Individual
•
Filing: 1922-10-25
•
Granted: 1926-07-13
•
Expires: 1942-10-25
Abstract
No abstract record available.
Inventors
- 👤 Fred O Paige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:59
CPC Classifications
C; C02; C02F; C02F1/00; B; B01; B01J; B01J4/00; G; G05; G05D; G05D11/00; G05D11/02; G05D11/035; Y; Y10; Y10T; Y10T137/00; Y10T137/0318
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1929-07-12 | 1930-01-11 | 1930-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-07-12 | 1934-01-11 | 1934-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-07-12 | 1938-01-11 | 1938-07-13 | $7700.00 | Window Closed / Lapsed |