Patent US2546479A successfully refreshed from Google Patents.
US2546479A
Expired / Lapsed
US
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Evaporative and capillarity tower
Assignee: Individual
•
Filing: 1948-05-01
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Granted: 1951-03-27
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Expires: 1968-05-01
Abstract
No abstract record available.
Inventors
- 👤 Pasqualo A Sodano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:08
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/30257; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US522549A
Cited
US1205571A
Cited
US1283154A
Cited
US1462703A
Cited
US1707122A
Cited
US1757205A
Cited
US2140516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |