US2871679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporator feed control means in refrigerating apparatus
Assignee: Individual
•
Filing: 1955-01-19
•
Granted: 1959-02-03
•
Expires: 1975-01-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Elmer W Zearfoss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:52
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B2400/00; F25B2400/05; F25B2400/052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1735995A
Cited
US2133961A
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US2252300A
Cited
US2330876A
Cited
US2489680A
Cited
US2570962A
Cited
US2608834A
Cited
US2707868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |