US3065816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereophonic sound distributor
Assignee: RANGERTONE ELECTRONICS CORP
•
Filing: 1958-03-10
•
Granted: 1962-11-27
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Ranger Laura Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:04
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/04; H04R5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2210477A
Cited
US2179840A
Cited
US2292424A
Cited
GB551364A
Cited
FR899777A
Cited
GB574370A
Cited
US2450139A
Cited
GB659817A
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 |