US1352593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon-shifting means for calculators
Assignee: WILKINSON BROTHERS AND Co
•
Filing: 1918-11-27
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Granted: 1920-09-14
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Expires: 1938-11-27
Abstract
No abstract record available.
Inventors
- 👤 Fuhrmann Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:54
CPC Classifications
B; B41; B41J; B41J35/00
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) | 1923-09-14 | 1924-03-15 | 1924-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-09-14 | 1928-03-15 | 1928-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-09-14 | 1932-03-15 | 1932-09-14 | $7700.00 | Window Closed / Lapsed |