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US2645324A
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Adjustable escapement mechanism for typewriters
Assignee: RC Allen Business Machines Inc
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Filing: 1950-09-26
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Granted: 1953-07-14
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Expires: 1970-09-26
Abstract
No abstract record available.
Inventors
- 👤 Floyd J Kavanaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:14
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/20; B41J19/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1100669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |