US3483338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track structure for drawout switchgear apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1968-11-27
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Granted: 1969-12-09
•
Expires: 1988-11-27
Abstract
No abstract record available.
Inventors
- 👤 Fred Bould
- 👤 Nagar J Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:46
CPC Classifications
H; H02; H02B; H02B11/00; H02B11/12; H02B11/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2295405A
Cited
US2264755A
Cited
US2412931A
Cited
US2762878A
Cited
US2851549A
Cited
US3297839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |