US3069503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone call completion indicator
Assignee: TDK Micronas GmbH
•
Filing: 1957-12-30
•
Granted: 1962-12-18
•
Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 Leslie B Haigh
- 👤 Henry F Herbig
- 👤 Abelino C Bucarey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:25
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/38; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2107154A
Cited
US2396072A
Cited
US2754369A
Cited
US2729703A
Cited
US3004105A
Cited
US2883473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |