Patent US3341103A successfully refreshed from Google Patents.
Patent US5267565A successfully refreshed from Google Patents.
Patent US2968314A successfully refreshed from Google Patents.
US2968314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dome construction for pressure regulating device
Assignee: SPRAGUE METER Co
•
Filing: 1958-06-18
•
Granted: 1961-01-17
•
Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Whitworth Fairchild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:17
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/14; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/778; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7885; Y10T137/794; Y10T137/8122
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1367164A
Cited
US1411228A
Cited
US2255219A
Cited
US2634088A
Cited
US2664674A
Cited
US2620087A
Cited
US2581071A
Cited
US2619983A
Cited
US2864395A
Cited
US2813543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |