US2994775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logging apparatus
Assignee: Gulf Research and Development Co
•
Filing: 1956-04-26
•
Granted: 1961-08-01
•
Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 William E Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:35
CPC Classifications
H; H05; H05H; H05H3/00; H05H3/06; G; G01; G01V; G01V5/00; G01V5/04; G01V5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2908823A
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US2792500A
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US2817032A
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US2914677A
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US2842695A
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US2894136A
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US2901628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |