Patent US2127450A successfully refreshed from Google Patents.
US2127450A
Expired / Lapsed
US
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Process for preparing water for industrial purposes of all kinds, especially boiler feed water
Assignee: Individual
•
Filing: 1934-01-22
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Granted: 1938-08-16
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Expires: 1954-01-22
Abstract
No abstract record available.
Inventors
- 👤 Schneider Albert
- 👤 Gaisser Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:46
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/02; C02F1/00; C02F1/68; C02F1/685; Y; Y10; Y10S; Y10S261/00; Y10S261/72
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) | 1941-08-15 | 1942-02-14 | 1942-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-15 | 1946-02-14 | 1946-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-15 | 1950-02-14 | 1950-08-16 | $7700.00 | Window Closed / Lapsed |