US2449291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording apparatus volume level indicator
Assignee: WILCOX GAY CORP
•
Filing: 1941-08-20
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Granted: 1948-09-14
•
Expires: 1961-08-20
Abstract
No abstract record available.
Inventors
- 👤 Gay Paul Stead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:02
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/04; G11; G11B; G11B3/00; G11B3/02; G11B3/08
Claims Analysis
Total Claims: 0
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US2284423A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |