Patent US3231394A successfully refreshed from Google Patents.
US3231394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting water during storage
Assignee: HARRY CHIN
•
Filing: 1962-01-16
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Granted: 1966-01-25
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Expires: 1982-01-16
Abstract
No abstract record available.
Inventors
- 👤 Lillian M Corrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:38
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C02F5/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
METHOD OF PROTECTING WATER AGAINST CONTAMINATION DURING LONG STORAGE PERIODS, WHICH COMPRISES MIXING INTO WATER FROM ABOUT 180 TO ABOUT 240 PARTS PER MILLION OF DISODIUM PHOSPHATE, HEATING SAID WATER AT 212*F., DIRECTING THE HOT WATER INTO A STERILIZED METAL CONTAINER, AND SEALING SAID CONTAINER UNDER VACUUM.
Claim 2
Dependent Claim
47 words
METHOD OF PROTECTING WATER AGAINST CONTAMINATION DURING LONG STORAGE PERIODS, WHICH COMPRISES MIXING INTO WATER FROM ABOUT 180 TO ABOUT 240 PARTS PER MILLION OF DISODIUM PHOSPHATE, HEATING SAID WATER AT 212*F., DIRECTING THE HOT WATER INTO A STERILIZED METAL CONTAINER, AND SEALING SAID CONTAINER UNDER VACUUM.
References Cited (Backward Citations)
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |