US2216409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer-sheet feed mechanism for typewriting, teleprinting, and like machines
Assignee: Imperial Typewriter Co Ltd
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Filing: 1939-04-07
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Granted: 1940-10-01
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Expires: 1959-04-07
Abstract
No abstract record available.
Inventors
- 👤 Etheridge Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/22; B41J3/00; B41J3/24
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) | 1943-10-01 | 1944-04-01 | 1944-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-01 | 1948-04-01 | 1948-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-01 | 1952-04-01 | 1952-10-01 | $7700.00 | Window Closed / Lapsed |