US2534356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric apparatus consisting of a support provided with a covering layer of poor conductivity
Assignee: Hartford National Bank and Trust Co
•
Filing: 1946-07-20
•
Granted: 1950-12-19
•
Expires: 1966-07-20
Abstract
No abstract record available.
Inventors
- 👤 Kramer Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:52
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/26; H05B3/262
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1881444A
Cited
US1983267A
Cited
US2023517A
Cited
US1984925A
Cited
US2324383A
Cited
US2378772A
Cited
US2364996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |