US2532896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature operated valve
Assignee: Detroit Lubricator Co
•
Filing: 1944-12-06
•
Granted: 1950-12-05
•
Expires: 1964-12-06
Abstract
No abstract record available.
Inventors
- 👤 Earnest J Dillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021; G05D23/023; Y; Y10; Y10S; Y10S236/00; Y10S236/06; Y10T; Y10T137/00; Y10T137/598; Y10T137/6116
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190414211A
Cited
US1234573A
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US1290249A
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US1528788A
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US1751688A
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US1884794A
Cited
US1952683A
Cited
DE633276C
Cited
US2241324A
Cited
US2277998A
Cited
US2368181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |