US2562983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency-adjustable seismic wave detector
Assignee: ExxonMobil Oil Corp
•
Filing: 1947-05-27
•
Granted: 1951-08-07
•
Expires: 1967-05-27
Abstract
No abstract record available.
Inventors
- 👤 Dayton H Clewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:07
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/181
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB245805A
Cited
US2418953A
Cited
US2067636A
Cited
US2147060A
Cited
US2111643A
Cited
US2271864A
Cited
US2303413A
Cited
US2307792A
Cited
US2311079A
Cited
US2408478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |