US3005055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilting dial circuit selector
Assignee: AT&T Inc
•
Filing: 1957-10-08
•
Granted: 1961-10-17
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Charles F Mattke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:22
CPC Classifications
H; H01; H01H; H01H25/00; H01H25/04; H01H25/041; H04; H04M; H04M1/00; H04M1/02; H04M1/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1850769A
Cited
US1980803A
Cited
US2190307A
Cited
US2227350A
Cited
US2410050A
Cited
US2686234A
Cited
US2863010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |