US3012107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound powered telephones
Assignee: Societe dElectronique et dAutomatisme SA
•
Filing: 1958-03-11
•
Granted: 1961-12-05
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Expires: 1978-03-11
Abstract
No abstract record available.
Inventors
- 👤 Hanlet Jacques Marie Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:22
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/025; H04R9/04; H04R9/046; H04R9/047; H04R9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1034200A
Cited
US1238439A
Cited
GB329328A
Cited
AT134225B
Cited
US2404798A
Cited
US2535757A
Cited
GB705330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |