US2548878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic valve having sealing diaphragm and supporting means therefor
Assignee: Detroit Lubricator Co
•
Filing: 1948-12-30
•
Granted: 1951-04-17
•
Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Earnest J Dillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:09
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US897730A
Cited
US1632125A
Cited
US1601444A
Cited
US2118292A
Cited
US2019144A
Cited
US2400048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |