US2660559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the purification of liquids
Assignee: MARYLAND LAB Inc
•
Filing: 1949-08-31
•
Granted: 1953-11-24
•
Expires: 1969-08-31
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel S Prime
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:12
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L2/202; Y; Y10; Y10S; Y10S422/00; Y10S422/905; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
APPARATUS FOR THE PURIFICATION OF LIQUIDS, COMPRISING AN OZONE GENERATOR, A COMPRESSOR FOR COMPRESSING THE OZONE AS RECEIVED FROM THE GENERATOR, MEANS FOR PREVENTING OXIDATION AND DESTRUCTION OF THE PARTS OF THE COMPRESSOR AS A RESULT OF COMING INTO TRAVEL CONTACT WITH THE OZONE, AN INJECTOR, MEANS FOR PASSING A BODY OF LIQUID TO BE PURIFIED INTO THE INJECTOR UNDER
References Cited (Backward Citations)
US430387A
Cited
US837107A
Cited
US969736A
Cited
US1006992A
Cited
US1138202A
Cited
US1103211A
Cited
US1169825A
Cited
US1172468A
Cited
US1362999A
Cited
GB166211A
Cited
US1363589A
Cited
US1420046A
Cited
US1417046A
Cited
US1544838A
Cited
US2043701A
Cited
US2055808A
Cited
US2009230A
Cited
US2050771A
Cited
US2048158A
Cited
US2195981A
Cited
US2405553A
Cited
US2456496A
Cited
US2404778A
Cited
US2426121A
Cited
US2606150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |