Patent US3228665A successfully refreshed from Google Patents.
US3228665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purification device
Assignee: Individual
•
Filing: 1963-10-04
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Granted: 1966-01-11
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Melvin C Dolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:06
CPC Classifications
B; B01; B01D; B01D35/00; Y; Y10; Y10S; Y10S261/00; Y10S261/46; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN IN-LINE SCREEN KIT COMPRISING IN COMBINATION AN ELLIPSOIDAL, TRANSPARENT PLASTIC BODY, A CHAMBER WITHIN SAID BODY, AN INLET TUBE AND AN OUTLET TUBE PROVIDING MEANS FOR THE ENTRANCE AND EXIT RESPECTIVELY OF WATER, A FLAT SCREEN ARCUATELY BENT PROVIDING MEANS FOR FILTERING WOODEN FIBERS AND FOREIGN PARTICLES FROM THE WATER, SAID FLAT SCREEN BEING RECEIVED AND FRICTIONALLY SECURED WITHIN SAID BODY, AND A BLEEDOFF TUBE COMMUNICATING WITH AND PROVIDING A BLEEDOFF FROM SAID CHAMBER, AN EVAPORATIVE COOLER HAVING AN INLET DISTRIBUTOR HOSE, A SPIDER-LIKE DISTRIBUTOR ADAPTED TO DISTRIBUTE WATER TO MULTIPLE POINTS AND A WATER RECIRCULATION PUMP HAVING AN OUTLET HOSE, SAID
Claim 2
Dependent Claim
103 words
AN IN-LINE SCREEN KIT COMPRISING IN COMBINATION AN ELLIPSOIDAL, TRANSPARENT PLASTIC BODY, A CHAMBER WITHIN SAID BODY, AN INLET TUBE AND AN OUTLET TUBE PROVIDING MEANS FOR THE ENTRANCE AND EXIT RESPECTIVELY OF WATER, A FLAT SCREEN ARCUATELY BENT PROVIDING MEANS FOR FILTERING WOODEN FIBERS AND FOREIGN PARTICLES FROM THE WATER, SAID FLAT SCREEN BEING RECEIVED AND FRICTIONALLY SECURED WITHIN SAID BODY, AND A BLEEDOFF TUBE COMMUNICATING WITH AND PROVIDING A BLEEDOFF FROM SAID CHAMBER, AN EVAPORATIVE COOLER HAVING AN INLET DISTRIBUTOR HOSE, A SPIDER-LIKE DISTRIBUTOR ADAPTED TO DISTRIBUTE WATER TO MULTIPLE POINTS AND A WATER RECIRCULATION PUMP HAVING AN OUTLET HOSE, SAID
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |