Patent US1938730A successfully refreshed from Google Patents.
Patent US2369222A successfully refreshed from Google Patents.
US2369222A
Expired / Lapsed
US
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Well scraping tool
Assignee: Artesian Well & Equipment Co I
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Filing: 1942-05-21
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Granted: 1945-02-13
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Expires: 1962-05-21
Abstract
No abstract record available.
Inventors
- 👤 Sara F Every
- 👤 Virgil F Every
- 👤 Peoples Trust Company O County
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:42
CPC Classifications
E; E21; E21B; E21B37/00; E21B37/02
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) | 1948-02-13 | 1948-08-14 | 1949-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-13 | 1952-08-14 | 1953-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-13 | 1956-08-14 | 1957-02-13 | $7700.00 | Window Closed / Lapsed |