US2385702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistor
Assignee: Unifrax I LLC
•
Filing: 1942-09-24
•
Granted: 1945-09-25
•
Expires: 1962-09-24
Abstract
No abstract record available.
Inventors
- 👤 Hediger Ernst
- 👤 Walter E Schildhauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:44
CPC Classifications
H; H01; H01C; H01C7/00; H01B; H01B3/00; H01B3/02; H01B3/08; H01C1/00; H01C1/02; H01C1/024
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-09-24 | 1949-03-26 | 1949-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-24 | 1953-03-26 | 1953-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-24 | 1957-03-26 | 1957-09-25 | $7700.00 | Window Closed / Lapsed |