Patent US2209222A successfully refreshed from Google Patents.
US2209222A
Expired / Lapsed
US
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Typewriting machine
Assignee: Underwood Elliott Fisher Co
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Filing: 1938-11-23
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Granted: 1940-07-23
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Expires: 1958-11-23
Abstract
No abstract record available.
Inventors
- 👤 William A Dobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:01
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/76; B41J19/78; B41J19/80; B41J19/82; B41J19/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-07-23 | 1944-01-22 | 1944-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-23 | 1948-01-22 | 1948-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-23 | 1952-01-22 | 1952-07-23 | $7700.00 | Window Closed / Lapsed |