Patent US2208147A successfully refreshed from Google Patents.
US2208147A
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US
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Photoelectric inclinometer
Assignee: Stanolind Oil and Gas Co
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Filing: 1938-08-26
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Granted: 1940-07-16
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Expires: 1958-08-26
Abstract
No abstract record available.
Inventors
- 👤 Eisler Joseph Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:22
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/12; E; E21; E21B; E21B47/00; E21B47/02; E21B47/022
Claims Analysis
Total Claims: 0
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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) | 1943-07-16 | 1944-01-15 | 1944-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-16 | 1948-01-15 | 1948-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-16 | 1952-01-15 | 1952-07-16 | $7700.00 | Window Closed / Lapsed |