US2649702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap freezing by cooling a mass while under pressure and quickly relieving the pressure
Assignee: Individual
•
Filing: 1950-09-01
•
Granted: 1953-08-25
•
Expires: 1970-09-01
Abstract
No abstract record available.
Inventors
- 👤 Edward P Kellie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B4/00; A23B4/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1370221A
Cited
US1828853A
Cited
US1981675A
Cited
US1743375A
Cited
US2197457A
Cited
US2196080A
Cited
US2297786A
Cited
US2411152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |