US3022377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound reproducing system
Assignee: Lanteris Space LLC
•
Filing: 1956-10-29
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Granted: 1962-02-20
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Expires: 1976-10-29
Abstract
No abstract record available.
Inventors
- 👤 Lloyd J Bobb
- 👤 Robert B Goldman
- 👤 Jr George C Maling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:41
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/227
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1866831A
Cited
US2002919A
Cited
US2059929A
Cited
GB525154A
Cited
US2632055A
Cited
US2789161A
Cited
US2727949A
Cited
US2781461A
Cited
FR1127985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |