Patent US2746536A successfully refreshed from Google Patents.
US2746536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid evaporating apparatus
Assignee: Individual
•
Filing: 1952-04-14
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Granted: 1956-05-22
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Expires: 1972-04-14
Abstract
No abstract record available.
Inventors
- 👤 Sumiya Shinzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:10
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
AN EVAPORATOR COMPRISING A PLURALITY OF GROUPS OF AT LEAST THREE HEATERS, A PLURALITY OF SEPARATORS POSITIONED ONE BETWEEN EACH PAIR OF ADJACENT GROUPS OF HEATERS, AN UPPER CIRCULATION PIPE AND A LOWER CIRCULATION PIPE CONNECTING SAID SEPARATORS IN PARALLEL, SAID GROUPS OF HEATERS BEING CONNECTED IN PARALLES BETWEEN SAID UPPER AND LOWER
Claim 2
Dependent Claim
53 words
AN EVAPORATOR COMPRISING A PLURALITY OF GROUPS OF AT LEAST THREE HEATERS, A PLURALITY OF SEPARATORS POSITIONED ONE BETWEEN EACH PAIR OF ADJACENT GROUPS OF HEATERS, AN UPPER CIRCULATION PIPE AND A LOWER CIRCULATION PIPE CONNECTING SAID SEPARATORS IN PARALLEL, SAID GROUPS OF HEATERS BEING CONNECTED IN PARALLES BETWEEN SAID UPPER AND LOWER
References Cited (Backward Citations)
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US896460A
Cited
US1216187A
Cited
FR562352A
Cited
US1582066A
Cited
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Cited
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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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |