US3284602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed-gas circuit interrupters
Assignee: Westinghouse Electric Corp
•
Filing: 1961-12-20
•
Granted: 1966-11-08
•
Expires: 1981-12-20
Abstract
No abstract record available.
Inventors
- 👤 Robert E Friedrich
- 👤 Jr Robert G Colclaser
- 👤 Greger Henrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:33
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/16; H01H33/53; H01H33/56; H01H33/70; H01H33/80; H01H33/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2414522A
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US2459599A
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US2507210A
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US2664457A
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US2760033A
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US2762890A
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US3033962A
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US3164704A
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |