US2531156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of insulating hollow core conductors
Assignee: General Electric Co
•
Filing: 1945-04-17
•
Granted: 1950-11-21
•
Expires: 1965-04-17
Abstract
No abstract record available.
Inventors
- 👤 Carl A Piercy
- 👤 Robert S Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:03
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/20; H; H01; H01B; H01B13/00; H01B13/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2390823A
Cited
US1009731A
Cited
US1025763A
Cited
US1893590A
Cited
US1918344A
Cited
US1864674A
Cited
US1956722A
Cited
US2097501A
Cited
US2155980A
Cited
US2100587A
Cited
US2175373A
Cited
US2228766A
Cited
GB553669A
Cited
GB551454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |