Patent US2615080A successfully refreshed from Google Patents.
US2615080A
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Sound indicator and fluid level indicator for wells
Assignee: Byron Jackson Co
•
Filing: 1948-12-02
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Granted: 1952-10-21
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Expires: 1968-12-02
Abstract
No abstract record available.
Inventors
- 👤 Harry A Mathews
- 👤 Jr Mathew B Riordan
- 👤 Lyle B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:37
CPC Classifications
H; H04; H04B; H04B11/00; E; E21; E21B; E21B43/00; E21B43/11; E21B43/119; E21B47/00; E21B47/04; E21B47/047; Y; Y10; Y10S; Y10S367/00; Y10S367/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478791A
Cited
US1743711A
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US1822203A
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US2361458A
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US2396935A
Cited
US2436047A
Cited
US2439502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |