US2417708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge valve mechanism
Assignee: Young Radiator Co
•
Filing: 1943-11-19
•
Granted: 1947-03-18
•
Expires: 1963-11-19
Abstract
No abstract record available.
Inventors
- 👤 Joe C Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:02
CPC Classifications
F; F01; F01M; F01M5/00; F01M5/005; F01M5/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US854450A
Cited
US1223079A
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GB194366A
Cited
DE419023C
Cited
US1873769A
Cited
GB421900A
Cited
DE662977C
Cited
US2279285A
Cited
US2275576A
Cited
GB547350A
Cited
US2353577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |