US3433893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast electrical bushing
Assignee: Westinghouse Electric Corp
•
Filing: 1967-06-12
•
Granted: 1969-03-18
•
Expires: 1987-06-12
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hofmann
- 👤 August I Keto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:38
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/306; H01F; H01F27/00; H01F27/02; H01F27/04; Y; Y10; Y10S; Y10S174/00; Y10S174/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3318995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |