US2680771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature resistor for
Assignee: —
•
Filing: —
•
Granted: 1954-06-08
•
Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:06
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/62; F; F27; F27D; F27D11/00; F27D11/02; F27D99/00; F27D99/0001; F27D99/0006; H05B3/02; H05B3/03; F27D2099/0008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1443581A
Cited
US684296A
Cited
US775654A
Cited
US1470195A
Cited
US1572881A
Cited
US1576621A
Cited
US1710763A
Cited
US1799102A
Cited
US1969132A
Cited
US1969478A
Cited
US2192743A
Cited
US2231723A
Cited
US2195297A
Cited
US2404060A
Cited
US2516570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |