Patent US2563119A successfully refreshed from Google Patents.
US2563119A
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Recorder chart for oil or gas well recording instruments
Assignee: OTIS PRESSURE CONTROL Inc
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Filing: 1948-03-03
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Granted: 1951-08-07
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Expires: 1968-03-03
Abstract
No abstract record available.
Inventors
- 👤 Warner M Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:31
CPC Classifications
E; E21; E21B; E21B41/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12708; Y10T428/12715; Y10T428/12722; Y10T428/12771; Y10T428/12778; Y10T428/12785; Y10T428/12861; Y10T428/12951; Y10T428/12972
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336090A
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US1383174A
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US1383175A
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US1383176A
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US1726126A
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US2137307A
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US2099725A
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US2148225A
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US2314244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |