US2613449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pendulum damping device for elevation meters
Assignee: Stanolind Oil and Gas Co
•
Filing: 1945-08-31
•
Granted: 1952-10-14
•
Expires: 1965-08-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Eisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/02; G01C9/08
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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |