Patent US2848710A successfully refreshed from Google Patents.
US2848710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote reading fluid pressure gauge
Assignee: Geophysical Research Corp
•
Filing: 1954-03-26
•
Granted: 1958-08-19
•
Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 John E Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0005; E; E21; E21B; E21B47/00; E21B47/06; E21B47/12; G01L9/12; G01L9/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1929241A
Cited
US2425868A
Cited
US2381904A
Cited
US2416702A
Cited
US2418836A
Cited
US2662408A
Cited
US2674049A
Cited
US2669877A
Cited
US2667786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |