US2426368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for freezing liquids
Assignee: PRE PAK FREEZER CORP
•
Filing: 1943-12-27
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Granted: 1947-08-26
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Expires: 1963-12-27
Abstract
No abstract record available.
Inventors
- 👤 Walter W Mayne
- 👤 Kenneth A Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:34
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/14; A23G9/16; F; F25; F25C; F25C1/00; F25C1/12; F25C1/14; F25C1/145; F25C1/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1783864A
Cited
US1910009A
Cited
US2059065A
Cited
US2117215A
Cited
US2228999A
Cited
US2302169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |