US2746472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety valve
Assignee: Honeywell Inc
•
Filing: 1952-12-13
•
Granted: 1956-05-22
•
Expires: 1972-12-13
Abstract
No abstract record available.
Inventors
- 👤 Melvin G Sogge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:41
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2596796A
Cited
US2636505A
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US2588179A
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US2513705A
Cited
US2627911A
Cited
US2607529A
Cited
US2624338A
Cited
US2650028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |