US2729800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric wire coupling
Assignee: Lewis Engineering Co
•
Filing: 1953-04-23
•
Granted: 1956-01-03
•
Expires: 1973-04-23
Abstract
No abstract record available.
Inventors
- 👤 Knud J Knudsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/22; H01R13/24; H01R13/2407; H01R13/2421
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |