US2454838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug assembly
Assignee: STC PLC
•
Filing: 1943-04-24
•
Granted: 1948-11-30
•
Expires: 1963-04-24
Abstract
No abstract record available.
Inventors
- 👤 Avery G Richardson
- 👤 Kaplan Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:25
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/5205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US798078A
Cited
US944877A
Cited
US1345473A
Cited
US1762510A
Cited
US1780686A
Cited
US1673644A
Cited
US1860801A
Cited
US1974910A
Cited
AT144769B
Cited
GB468410A
Cited
US2181154A
Cited
US2170393A
Cited
US2304167A
Cited
US2269194A
Cited
GB537968A
Cited
US2306821A
Cited
US2331409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |