US3525416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air operated underwater seismic source
Assignee: Mandrel Industries Inc
•
Filing: 1969-03-10
•
Granted: 1970-08-25
•
Expires: 1989-03-10
Abstract
No abstract record available.
Inventors
- 👤 Lewis Morton Mott-Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:34
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/38; G01V1/387; G01V1/02; G01V1/133; G01V1/137; Y; Y02; Y02A; Y02A90/00; Y02A90/30
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) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |