US3063260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling device employing the joule-thomson effect
Assignee: Specialties Development Corp
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Filing: 1960-12-01
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Granted: 1962-11-13
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Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 David H Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:23
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/02; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085; F25B2309/00; F25B2309/02; F25B2309/022
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |