US2186805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator
Assignee: Servel Inc
•
Filing: 1938-04-04
•
Granted: 1940-01-09
•
Expires: 1958-04-04
Abstract
No abstract record available.
Inventors
- 👤 Lenning Alvar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:54
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/085
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) | 1943-01-08 | 1943-07-10 | 1944-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-08 | 1947-07-10 | 1948-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-08 | 1951-07-10 | 1952-01-09 | $7700.00 | Window Closed / Lapsed |