US2619940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry gas meter with two bellows and two measuring chambers
Assignee: Compteurs Schlumberger SA
•
Filing: 1947-05-17
•
Granted: 1952-12-02
•
Expires: 1967-05-17
Abstract
No abstract record available.
Inventors
- 👤 Leroy Octave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:59
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/20; G01F3/22; G01F3/221
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1583040A
Cited
US1522117A
Cited
US1676651A
Cited
US1962044A
Cited
FR751759A
Cited
FR780194A
Cited
US2186307A
Cited
US2283152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |