US3496452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic volume control
Assignee: Rowe International Inc
•
Filing: 1966-11-08
•
Granted: 1970-02-17
•
Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Gilbert J Vollink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:04
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0047; H03G3/00; H03G3/20; H03G3/30; H03G3/3005; H03G3/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2958027A
Cited
US2957074A
Cited
US3021489A
Cited
US3110864A
Cited
US3109989A
Cited
US3165699A
Cited
US3333208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |