US2595490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of siliceous deposition from steam
Assignee: Wyandotte Chemicals Corp
•
Filing: 1945-01-04
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Granted: 1952-05-06
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Expires: 1965-01-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Schubring
- 👤 Lyman W Jillson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:08
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; F; F01; F01K; F01K21/00; F01K21/06; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/265
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A METHOD OF PURIFYING DRY SUPERHEATED STEAM, WHICH COMPRISES HEATING STEAM ABOVE 540* F., AND THEREAFTER COOLING SAID STEAM THROUGH THE TEMPERATURE RANGE OF 540*-450* C. TO PRECIPI-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |