US2661464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for recording dip of geological strata
Assignee: Geophysical Research Corp
•
Filing: 1949-04-08
•
Granted: 1953-12-01
•
Expires: 1969-04-08
Abstract
No abstract record available.
Inventors
- 👤 Wolf Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:23
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/26
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |