US2583149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporative fluid cooling apparatus
Assignee: Kramer Trenton Co
•
Filing: 1948-10-19
•
Granted: 1952-01-22
•
Expires: 1968-10-19
Abstract
No abstract record available.
Inventors
- 👤 Malkoff Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:01
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/04; F25B2339/00; F25B2339/04; F25B2339/041
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1428661A
Cited
FR560319A
Cited
US1861158A
Cited
US2221530A
Cited
FR839815A
Cited
US2259541A
Cited
US2291937A
Cited
US2379932A
Cited
US2509031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |