Patent US3577601A successfully refreshed from Google Patents.
Patent US2298150A successfully refreshed from Google Patents.
US2298150A
Expired / Lapsed
US
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Expansion valve
Assignee: Honeywell Inc
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Filing: 1938-02-26
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Granted: 1942-10-06
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Expires: 1958-02-26
Abstract
No abstract record available.
Inventors
- 👤 Alwin B Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:55
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/325; F25B41/33; F25B2600/00; F25B2600/21; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/5109; Y10T137/7722; Y10T137/7737; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7765; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/7792
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) | 1945-10-05 | 1946-04-06 | 1946-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-05 | 1950-04-06 | 1950-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-05 | 1954-04-06 | 1954-10-06 | $7700.00 | Window Closed / Lapsed |