Patent US958615A successfully refreshed from Google Patents.
Patent US2770795A successfully refreshed from Google Patents.
US2770795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic log
Assignee: Raytheon Co
•
Filing: 1951-03-30
•
Granted: 1956-11-13
•
Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert E Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:38
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01P; G01P5/00; G01P5/24; G01P5/241; G01P5/242; G01S15/00; G01S15/02; G01S15/50; G01S15/58; G01S15/60; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |