US2435802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid freezing device
Assignee: Lanteris Space LLC
•
Filing: 1944-06-30
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Granted: 1948-02-10
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Expires: 1964-06-30
Abstract
No abstract record available.
Inventors
- 👤 Helen E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:52
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/22; F25C1/24; F25C1/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB490847A
Cited
US2278408A
Cited
US2265705A
Cited
US2143977A
Cited
US2416934A
Cited
US2307606A
Cited
US2388378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |