US3500293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector including a visual indicator
Assignee: AT&T Inc
•
Filing: 1968-06-12
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Granted: 1970-03-10
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Expires: 1988-06-12
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Cocco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:51
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/22; H01; H01R; H01R13/00; H01R13/66; H01R13/717
Claims Analysis
Total Claims: 0
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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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |