Patent US4529691A successfully refreshed from Google Patents.
Patent US2207260A successfully refreshed from Google Patents.
US2207260A
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Refrigeration
Assignee: Servel Inc
•
Filing: 1935-12-31
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Granted: 1940-07-09
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Expires: 1955-12-31
Abstract
No abstract record available.
Inventors
- 👤 Walter A Kuenzli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:45
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/02; F25B15/025; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579; Y10T137/8593; Y10T137/86493; Y10T137/86501
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) | 1943-07-09 | 1944-01-08 | 1944-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-09 | 1948-01-08 | 1948-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-09 | 1952-01-08 | 1952-07-09 | $7700.00 | Window Closed / Lapsed |