US3066186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic voice box
Assignee: Rand Development Corp
•
Filing: 1958-04-02
•
Granted: 1962-11-27
•
Expires: 1978-04-02
Abstract
No abstract record available.
Inventors
- 👤 James R Trammell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE512313A
Cited
US2273077A
Cited
US2273078A
Cited
US2328169A
Cited
US2355287A
Cited
US2374090A
Cited
US2868876A
Cited
US2774875A
Cited
US2892892A
Cited
US2843743A
Cited
US2887574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |