US2607214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording liquid gravitometer
Assignee: Individual
•
Filing: 1949-03-16
•
Granted: 1952-08-19
•
Expires: 1969-03-16
Abstract
No abstract record available.
Inventors
- 👤 William A Schlueter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:34
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/10; G01N9/12; G01N9/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US699188A
Cited
US1174787A
Cited
US1384886A
Cited
US1546702A
Cited
US1798589A
Cited
US1701404A
Cited
CH130758A
Cited
US1922362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |