US2442741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High viscosity damping fluid
Assignee: Cities Service Oil Co
•
Filing: 1945-09-06
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Granted: 1948-06-01
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Expires: 1965-09-06
Abstract
No abstract record available.
Inventors
- 👤 John D Morgan
- 👤 Russell E Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:04
CPC Classifications
C; C10; C10M; C10M3/00; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2040/00; C10N2040/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2058899A
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US2091627A
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US2245649A
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US2241531A
Cited
US2236662A
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US2340073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |