US3346704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for aiding hearing
Assignee: Individual
•
Filing: 1963-12-27
•
Granted: 1967-10-10
•
Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jack L Mahoney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/60; H04R25/604; H04R25/606; H04R2225/00; H04R2225/67
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2995633A
Cited
US3054397A
Cited
US3209081A
Cited
US3170993A
Cited
US3156787A
Cited
US3195540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |