US3038542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tester apparatus for oil wells or the like
Assignee: Individual
•
Filing: 1958-08-11
•
Granted: 1962-06-12
•
Expires: 1978-08-11
Abstract
No abstract record available.
Inventors
- 👤 Glenn L Loomis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:39
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/1208; E21B33/1216; E21B47/00; E21B47/10; E21B47/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2555647A
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US2831541A
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US2824612A
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US2850101A
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US2807955A
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US2841007A
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US2885009A
Cited
US2896724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |