Patent US2786341A successfully refreshed from Google Patents.
US2786341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct evaporative vortex tube refrigeration system
Assignee: Garrett Corp
•
Filing: 1950-06-19
•
Granted: 1957-03-26
•
Expires: 1970-06-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:00
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/02; F25B9/04; Y; Y10; Y10S; Y10S55/00; Y10S55/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2126266A
Cited
US1812339A
Cited
US1952281A
Cited
US2124289A
Cited
US2304151A
Cited
US2485590A
Cited
US2477931A
Cited
US2581168A
Cited
US2586002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |