US2451839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductor
Assignee: TENAPLAS Ltd
•
Filing: 1945-05-07
•
Granted: 1948-10-19
•
Expires: 1965-05-07
Abstract
No abstract record available.
Inventors
- 👤 Lemon Cecil George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:57
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US468585A
Cited
US575170A
Cited
GB190519807A
Cited
US1819612A
Cited
US1944390A
Cited
US2127122A
Cited
US2120301A
Cited
US2277177A
Cited
US2396099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |