US2864750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for water treatment
Assignee: Sta-Lit Lighter Co
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Filing: 1953-12-01
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Granted: 1958-12-16
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Expires: 1973-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jr John F Hughes
- 👤 Thomas M Leisle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:09
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/4602; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4612; C02F2201/46125; C02F2201/4613; C02F2201/4616; C02F2201/4617; C02F2303/00; C02F2303/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
THE METHOD OF TREATING WATER FOR PREVENTION OF SCALE DEPOSIT ON SURFACES WHICH ARE WETTED BY THE WATER, SAID METHOD INCLUDING THE EXPOSURE OF WATER WHICH IS IN AQUATIC COMMUNICATION WITH SAID WATER ON SAID SURFACES BETWEEN TWO ELECTRODES IN A UNIT PROVIDING DIELECTRIC MOUNTING MEANS FOR THE ELECTRODES, ONE OF SAID ELECTRODES COMPRISING A "NON-METALLIC CONDUCTOR" AND THE OTHER COMPRISING AN "ADSORPTIVE METAL" ELECTRODE SPACED FROM SAID NON-METALLIC CONDUCTOR, PROVIDING A SOURCE OF UNINON-METALLIC CONDUCTOR AND ITS NEGATIVE POLE TO THE ADSORPTIVE METAL ELECTRODE, AND PASSING UNI-DIRECTIONAL CURRENT FROM SAID SOURCE THROUGH SAID ELECTRODES AND THROUGH THE WATER BETWEEN THE ELECTRODES WITHOUT CONNECTING THE UNI-DIRECTIONAL CURRENT DIRECTLY TO SAID SURFACES.
Claim 2
Independent Claim
111 words
THE METHOD OF TREATING WATER FOR PREVENTION OF SCALE DEPOSIT ON SURFACES WHICH ARE WETTED BY THE WATER, SAID METHOD INCLUDING THE EXPOSURE OF WATER WHICH IS IN AQUATIC COMMUNICATION WITH SAID WATER ON SAID SURFACES BETWEEN TWO ELECTRODES IN A UNIT PROVIDING DIELECTRIC MOUNTING MEANS FOR THE ELECTRODES, ONE OF SAID ELECTRODES COMPRISING A "NON-METALLIC CONDUCTOR" AND THE OTHER COMPRISING AN "ADSORPTIVE METAL" ELECTRODE SPACED FROM SAID NON-METALLIC CONDUCTOR, PROVIDING A SOURCE OF UNINON-METALLIC CONDUCTOR AND ITS NEGATIVE POLE TO THE ADSORPTIVE METAL ELECTRODE, AND PASSING UNI-DIRECTIONAL CURRENT FROM SAID SOURCE THROUGH SAID ELECTRODES AND THROUGH THE WATER BETWEEN THE ELECTRODES WITHOUT CONNECTING THE UNI-DIRECTIONAL CURRENT DIRECTLY TO SAID SURFACES.
References Cited (Backward Citations)
US541335A
Cited
US645419A
Cited
US760302A
Cited
US943188A
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US1959531A
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GB389244A
Cited
FR855886A
Cited
US2530524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |