US2427183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulation
Assignee: EIDP Inc
•
Filing: 1943-10-25
•
Granted: 1947-09-09
•
Expires: 1963-10-25
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:24
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/04; H01B3/18; H01B3/30; H01B3/44; H01B3/443; H01B3/445; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2911; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US162204A
Cited
GB190305892A
Cited
US1416036A
Cited
US1873753A
Cited
US1998309A
Cited
US2230654A
Cited
US2258218A
Cited
US2325060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |