US2432547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature and liquid level control for refrigeration apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1945-02-06
•
Granted: 1947-12-16
•
Expires: 1965-02-06
Abstract
No abstract record available.
Inventors
- 👤 Robert H Tull
- 👤 Evert S Wegman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; F25D31/003; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036; Y10T137/7287; Y10T137/7329; Y10T137/7358; Y10T137/7407; Y10T137/8593; Y10T137/87917; Y10T137/88046
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1897559A
Cited
US2346259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |