US2850885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for refrigerating with dry ice
Assignee: Individual
•
Filing: 1956-11-23
•
Granted: 1958-09-09
•
Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Edgar H Mohr
- 👤 Ernest G Hutcheson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:43
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/12; F25D3/14; F25D2303/00; F25D2303/08; F25D2303/084; F25D2303/0845; F25D2331/00; F25D2331/80; F25D2331/804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |