US3050592A
Expired / Lapsed
US
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Assignee: Automatic Electric Laboratories Inc
•
Filing: 1959-10-01
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Granted: 1962-08-21
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Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Karl L Burgener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/82; H04M3/00; H04M3/42; H04M3/50; H04M3/53; H04M3/537
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2275352A
Cited
US2884491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |