Patent US2909822A successfully refreshed from Google Patents.
US1041184A
Expired / Lapsed
US
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Ribbon-spool mechanism for type-writers.
Assignee: Individual
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Filing: 1912-02-09
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Granted: 1912-10-15
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Expires: 1932-02-09
Abstract
No abstract record available.
Inventors
- 👤 Charles Spiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:59
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/602
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) | 1915-10-15 | 1916-04-15 | 1916-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-10-15 | 1920-04-15 | 1920-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-10-15 | 1924-04-15 | 1924-10-15 | $7700.00 | Window Closed / Lapsed |