US2686534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonchattering relief valve
Assignee: Individual
•
Filing: 1950-09-27
•
Granted: 1954-08-17
•
Expires: 1970-09-27
Abstract
No abstract record available.
Inventors
- 👤 Montelius Carl Oscar Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/044; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K17/0433; F16K47/00; F16K47/01; F16K47/011; F16K47/0111; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7904; Y10T137/7922; Y10T137/7929
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE166688C
Cited
US1962549A
Cited
US1846483A
Cited
US1884179A
Cited
US2002451A
Cited
US2150266A
Cited
US2170478A
Cited
US2583295A
Cited
CH251978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |