US2849867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling by evaporation of a liquid at a very low temperature
Assignee: Stamicarbon BV
•
Filing: 1956-02-03
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Granted: 1958-09-02
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Expires: 1976-02-03
Abstract
No abstract record available.
Inventors
- 👤 Pieter J Haringhuizen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0276; F25J3/0204; F25J3/0219; F25J3/0252; F25J2205/00; F25J2205/02; F25J2205/04; F25J2205/30; F25J2210/00; F25J2210/14; F25J2210/20; F25J2210/42; Y; Y10; Y10S; Y10S62/00; Y10S62/919; Y10S62/92; Y10S62/923; Y10S62/924; Y10S62/931; Y10S62/932; Y10S62/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702683A
Cited
US1620192A
Cited
US1840833A
Cited
US2545194A
Cited
US2585288A
Cited
US2760352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |