US2871320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy duty switch with magnetic blasting
Assignee: BBC Brown Boveri AG Germany
•
Filing: 1956-12-18
•
Granted: 1959-01-27
•
Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 Bardorf Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:26
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/50; H01H1/54; H01H33/00; H01H33/02; H01H33/04; H01H33/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US470161A
Cited
US789975A
Cited
DE273895C
Cited
US1645905A
Cited
FR666982A
Cited
DE696410C
Cited
US2243038A
Cited
US2323642A
Cited
US2328318A
Cited
US2443521A
Cited
US2477189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |