US2783303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone answering and recording devices
Assignee: AUTOMATIC PHONE RECORDER CO LT
•
Filing: 1951-09-25
•
Granted: 1957-02-26
•
Expires: 1971-09-25
Abstract
No abstract record available.
Inventors
- 👤 Fontaine John Garfield
- 👤 Mclean Allan Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/654; H04M1/6545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1778980A
Cited
US2005788A
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US2154722A
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US2261420A
Cited
US2374842A
Cited
US2393272A
Cited
US2549548A
Cited
US2533234A
Cited
US2539139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |