Patent US3445601A successfully refreshed from Google Patents.
US3445601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic telephone dialing and message delivery system
Assignee: U S TELEPHONICS Inc
•
Filing: 1965-03-02
•
Granted: 1969-05-20
•
Expires: 1985-03-02
Abstract
No abstract record available.
Inventors
- 👤 Richard L Whitely
- 👤 Lawrence A Yaggi
- 👤 Kenneth P Shivers
- 👤 Stewart Tongret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:34
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/46; H04M3/465; H04M3/424
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2039777A
Cited
US2827515A
Cited
US2815401A
Cited
US2952740A
Cited
US2998489A
Cited
US3156771A
Cited
US3360612A
Cited
US3274346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |