US2936289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treating composition
Assignee: Olin Corp
•
Filing: 1955-05-05
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Granted: 1960-05-10
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Expires: 1975-05-05
Abstract
No abstract record available.
Inventors
- 👤 Richard C Harshman
- 👤 Robert L Holbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:24
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/16; C02; C02F; C02F5/00; C02F5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A TABLET OR PELLET SUITABLE FOR USE IN THE TREATMENT OF BOILER FEED WATER CONSISTING ESSENTIALLY OF FROM 1 TO 80 PERCENT BY WEIGHT OF A HYDRAZINUUM SALT, 1 TO 5 PERCENT BY WEIGHT OF A BUILDING AGENT SELECTED FROM THE GROUP CONSISTING OF ZINC STERATE, HYDRAZINUYM DISTEARATE, AND STEARIC MONOHYDRAZIDE, AND THE BALANCE OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF TRISODIUM PHOSPHATE, SODIUM CARBONATE, SODIUM SILICATE, SODIUM CHLORIDE, SODIUM ACETATE, SODIUM BISULFITE AND TANNIN EXTRACT.
Claim 2
Dependent Claim
80 words
A TABLET OR PELLET SUITABLE FOR USE IN THE TREATMENT OF BOILER FEED WATER CONSISTING ESSENTIALLY OF FROM 1 TO 80 PERCENT BY WEIGHT OF A HYDRAZINUUM SALT, 1 TO 5 PERCENT BY WEIGHT OF A BUILDING AGENT SELECTED FROM THE GROUP CONSISTING OF ZINC STERATE, HYDRAZINUYM DISTEARATE, AND STEARIC MONOHYDRAZIDE, AND THE BALANCE OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF TRISODIUM PHOSPHATE, SODIUM CARBONATE, SODIUM SILICATE, SODIUM CHLORIDE, SODIUM ACETATE, SODIUM BISULFITE AND TANNIN EXTRACT.
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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) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |