US2439336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic valve
Assignee: Detroit Lubricator Co
•
Filing: 1945-04-20
•
Granted: 1948-04-06
•
Expires: 1965-04-20
Abstract
No abstract record available.
Inventors
- 👤 Earnest J Dillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:56
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021; G05D23/023; Y; Y10; Y10S; Y10S236/00; Y10S236/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US353186A
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US654238A
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US940155A
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US969848A
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US1499834A
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US1595242A
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US1884794A
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US1936325A
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US2237064A
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US2210768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |