US2418043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriting machine frame
Assignee: Royal Typewriter Co Inc
•
Filing: 1944-06-02
•
Granted: 1947-03-25
•
Expires: 1964-06-02
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
B; B41; B41J; B41J29/00; B41J29/12; B41J29/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US83572A
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US282850A
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GB204964A
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US1510563A
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US2210569A
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US2326312A
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US2366106A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |