Patent US1798491A successfully refreshed from Google Patents.
Patent US2469390A successfully refreshed from Google Patents.
US2469390A
Expired / Lapsed
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Key lever spacer and guide for stenographic machines
Assignee: Victor Adding Machine Co
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Filing: 1946-05-10
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Granted: 1949-05-10
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Expires: 1966-05-10
Abstract
No abstract record available.
Inventors
- 👤 Hunter E Hooe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:15
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US448037A
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US911644A
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US1199383A
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US1280977A
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US1537147A
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US1809024A
Cited
US1733788A
Cited
US1883697A
Cited
US2258695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |