US2923366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic prospecting method
Assignee: California Research LLC
•
Filing: 1952-03-07
•
Granted: 1960-02-02
•
Expires: 1972-03-07
Abstract
No abstract record available.
Inventors
- 👤 Edwin P Meiners
- 👤 Glenn A Schurman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:39
CPC Classifications
G; G01; G01V; G01V1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1240328A
Cited
FR701747A
Cited
US2044807A
Cited
US2425868A
Cited
US2281751A
Cited
US2405187A
Cited
US2364209A
Cited
US2451967A
Cited
US2630188A
Cited
US2530971A
Cited
US2722282A
Cited
US2642146A
Cited
US2704364A
Cited
US2718928A
Cited
US2745507A
Cited
US2654874A
Cited
US2755879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |