US2569972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-wire test clip
Assignee: AT&T Inc
•
Filing: 1947-10-28
•
Granted: 1951-10-02
•
Expires: 1967-10-28
Abstract
No abstract record available.
Inventors
- 👤 Benner Archie Carol
- 👤 Guest Walter Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191107593A
Cited
US1171710A
Cited
GB211884A
Cited
US1999613A
Cited
US2121063A
Cited
US2245194A
Cited
US2237187A
Cited
US2402766A
Cited
US2408045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |