Patent US2046554A successfully refreshed from Google Patents.
US2046554A
Expired / Lapsed
US
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Vapor condensing and liquid cooling apparatus
Assignee: Individual
•
Filing: 1933-06-21
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Granted: 1936-07-07
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Expires: 1953-06-21
Abstract
No abstract record available.
Inventors
- 👤 Norman H Gay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0033; B01D5/0051; B01D5/0003; B01D5/0009; B01D5/0057; B01D5/006; B01D5/0063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-07-07 | 1940-01-06 | 1940-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-07-07 | 1944-01-06 | 1944-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-07-07 | 1948-01-06 | 1948-07-07 | $7700.00 | Window Closed / Lapsed |