US2432859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant flow controlling means
Assignee: Detroit Lubricator Co
•
Filing: 1944-04-10
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Granted: 1947-12-16
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Expires: 1964-04-10
Abstract
No abstract record available.
Inventors
- 👤 Franklyn Y Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F25B39/028; F25B41/00; F25B41/30; F25B41/31; F25B41/34; F25B41/345; F25B41/40; F25B41/42; F25B41/45; F25B2341/00; F25B2341/06; F25B2341/062; F25B41/48; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/4673; Y10T137/479; Y10T137/6851; Y10T137/7036; Y10T137/7722; Y10T137/7758; Y10T137/7761; Y10T137/7781; Y10T137/8593; Y10T137/87265; Y10T137/87298; Y10T137/87306; Y10T137/87314; Y10T137/87507; Y10T137/877; Y10T137/87708; Y10T137/87772
Claims Analysis
Total Claims: 0
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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) | 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 |