US2467507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire feed for magnetic recorders
Assignee: WIRECORDER Corp
•
Filing: 1946-07-03
•
Granted: 1949-04-19
•
Expires: 1966-07-03
Abstract
No abstract record available.
Inventors
- 👤 Irving A Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:50
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US215284A
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US631876A
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US947148A
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US1055604A
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US1883560A
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US2130265A
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US2349018A
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US2335277A
Cited
US2326670A
Cited
US2408320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |