US2964605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure operated circuit breaker pole units
Assignee: Voigt and Haeffner AG
•
Filing: 1956-09-19
•
Granted: 1960-12-13
•
Expires: 1976-09-19
Abstract
No abstract record available.
Inventors
- 👤 Schulz Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:04
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/32; H01H33/53; H01H33/56; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2148410A
Cited
US2387960A
Cited
US2472070A
Cited
US2491112A
Cited
GB718401A
Cited
US2747055A
Cited
US2748226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |