US3459930A
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Methods and apparatus for the correlation of two variables
Assignee: Seismograph Service Corp
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Filing: 1966-02-10
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Granted: 1969-08-05
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Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 William E Lerwill
- 👤 Nigel Allister Anstey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:45
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/19; G06G7/1914; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/364; G01V1/366; G01V1/37; G01V1/375; G06G7/1928; G10; G10L; G10L19/00; G10L19/02; G01S; G01S7/00; G01S7/02; G01S7/35; G01S7/352; G01V2210/00; G01V2210/30; G01V2210/32
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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |