US2742284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine for an elongated record medium
Assignee: Webster Electric Co Inc
•
Filing: 1951-01-19
•
Granted: 1956-04-17
•
Expires: 1971-01-19
Abstract
No abstract record available.
Inventors
- 👤 David J Munroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US743419A
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US1341108A
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US1297049A
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US1399208A
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US1883987A
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US2410569A
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US2546124A
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US2551198A
Cited
US2499700A
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US2542506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |