Patent US3541473A successfully refreshed from Google Patents.
US3541473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suppression of electro-magnetic interference in electrical power conductors
Assignee: Allen Bradley Co LLC
•
Filing: 1967-10-02
•
Granted: 1970-11-17
•
Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 Heinz M Schlicke
- 👤 John A Fillar
- 👤 Dennis P Henkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:50
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/02; H01P; H01P1/00; H01P1/20; H01P1/201
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |