US2624950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauge for aligning a string of pipe with a grade line
Assignee: Individual
•
Filing: 1949-10-25
•
Granted: 1953-01-13
•
Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 John A Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:38
CPC Classifications
E; E03; E03F; E03F3/00; E03F3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1194460A
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US791900A
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US922143A
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US1060284A
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US1026579A
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US1279031A
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US1336004A
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US1576453A
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DE538744C
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CH156786A
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US2384466A
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US2503408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |