US3526734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dead tank gas blast circuit breaker with interrupter structure immersed in low pressure of dead tank
Assignee: ITE Imperial Corp
•
Filing: 1967-11-06
•
Granted: 1970-09-01
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Expires: 1987-11-06
Abstract
No abstract record available.
Inventors
- 👤 Daniel H Mckeough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/28; H01H; H01H33/00; H01H33/70; H01H33/80; H01H33/82; H01H33/02; H01H33/53; H01H33/56; H01H33/562
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2291263A
Cited
US2835769A
Cited
DE1037551B
Cited
US3042918A
Cited
FR1301864A
Cited
US3359390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |