US2524913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion valve for refrigerating systems
Assignee: General Electric Co
•
Filing: 1944-04-26
•
Granted: 1950-10-10
•
Expires: 1964-04-26
Abstract
No abstract record available.
Inventors
- 👤 Harold F Lathrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/34; F25B41/345; F25B2341/00; F25B2341/06; F25B2341/068; F25B2341/0681; F25B2600/00; F25B2600/21; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S62/00; Y10S62/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2098914A
Cited
US2112344A
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US2060589A
Cited
US2342579A
Cited
US2303891A
Cited
US2319005A
Cited
US2410795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |