Patent US2586731A successfully refreshed from Google Patents.
US2586731A
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Surface generation of seismic waves
Assignee: ExxonMobil Oil Corp
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Filing: 1949-03-11
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Granted: 1952-02-19
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Expires: 1969-03-11
Abstract
No abstract record available.
Inventors
- 👤 Randolph F Simon
- 👤 Stanley N Heaps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/104; G01V1/13; Y; Y10; Y10S; Y10S181/00; Y10S181/40; Y10S181/401
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |