US2663002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attenuator for seismic gain control
Assignee: Stanolind Oil and Gas Co
•
Filing: 1950-06-20
•
Granted: 1953-12-15
•
Expires: 1970-06-20
Abstract
No abstract record available.
Inventors
- 👤 Louis B Mcmanis
- 👤 Jack R Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/245; H; H03; H03G; H03G7/00; H03G7/02
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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |