US2002307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression refrigerating system for low temperature purposes
Assignee: Individual
•
Filing: 1932-11-10
•
Granted: 1935-05-21
•
Expires: 1952-11-10
Abstract
No abstract record available.
Inventors
- 👤 Brier Henry
- 👤 Brier John Hornsby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:44
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/10; F25B2309/00; F25B2309/06; F25B2400/00; F25B2400/13; F25B2400/23; F25B9/00; F25B9/002; F25B9/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-05-20 | 1938-11-19 | 1939-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-20 | 1942-11-19 | 1943-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-20 | 1946-11-19 | 1947-05-21 | $7700.00 | Window Closed / Lapsed |