Patent US2884766A successfully refreshed from Google Patents.
US2884766A
Expired / Lapsed
US
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Refrigerated apparatus for pour testing oils
Assignee: Standard Oil Co
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Filing: 1956-01-30
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Granted: 1959-05-05
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Wendell P Cropper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:26
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; F25D31/003; F25B; F25B41/00; F25B41/20; F25B41/24; G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |