Patent US3408622A successfully refreshed from Google Patents.
US3408622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the production of seismographic records
Assignee: Sunoco Inc
•
Filing: 1967-05-19
•
Granted: 1968-10-29
•
Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 William H Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:30
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/42; G01V1/28; G01V1/36; G01V1/364; G01V1/366; G01V2210/00; G01V2210/10; G01V2210/16; G01V2210/161
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |