US3480356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audiovisual apparatus
Assignee: AV Corp
•
Filing: 1967-02-10
•
Granted: 1969-11-25
•
Expires: 1987-02-10
Abstract
No abstract record available.
Inventors
- 👤 Panayotis C Dimitracopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/044; G03B31/00; G03B31/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2460359A
Cited
US2579281A
Cited
US2898807A
Cited
US3122054A
Cited
US3240117A
Cited
US3138062A
Cited
US3208340A
Cited
US3348450A
Cited
US3389636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |