Patent US3495619A successfully refreshed from Google Patents.
US3495619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reducing valve
Assignee: Shoketsu Kinzoku Kogyo KK
•
Filing: 1966-03-23
•
Granted: 1970-02-17
•
Expires: 1986-03-23
Abstract
No abstract record available.
Inventors
- 👤 Tomomitsu Iizumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:23
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; G05D16/14; G05D16/16; G05D16/166; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2607; Y10T137/261; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7768; Y10T137/7769; Y10T137/777
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1184761A
Cited
US2583006A
Cited
US2522913A
Cited
US2664674A
Cited
US2761464A
Cited
US3086549A
Cited
US3357443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |