US2642724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insert type thermostatic expansion valve
Assignee: Detroit Controls Corp
•
Filing: 1949-07-20
•
Granted: 1953-06-23
•
Expires: 1969-07-20
Abstract
No abstract record available.
Inventors
- 👤 Franklyn Y Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:59
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B41/335; F25B2341/00; F25B2341/06; F25B2341/068; F25B2341/0683
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1180108A
Cited
US1719073A
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GB324957A
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US2113351A
Cited
US2120764A
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US2249101A
Cited
US2182718A
Cited
US2326093A
Cited
US2318721A
Cited
US2364107A
Cited
US2475556A
Cited
US2539062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |