US2539327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cabinet for radio apparatus
Assignee: Avco Manufacturing Corp
•
Filing: 1947-07-23
•
Granted: 1951-01-23
•
Expires: 1967-07-23
Abstract
No abstract record available.
Inventors
- 👤 Reid John Drysdale
- 👤 Paul F G Holst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:08
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1674683A
Cited
US1841658A
Cited
US1788103A
Cited
US1867177A
Cited
US1932343A
Cited
US1969704A
Cited
US2124575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |