US2892166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive for dielectric fluid of transformer assembly
Assignee: Westinghouse Electric Corp
•
Filing: 1955-01-20
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Granted: 1959-06-23
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Expires: 1975-01-20
Abstract
No abstract record available.
Inventors
- 👤 Truman K Sloat
- 👤 James G Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:03
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; H; H01; H01B; H01B3/00; H01B3/18; H01B3/20; H01B3/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/14; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |