Patent US3531592A successfully refreshed from Google Patents.
US3531592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicolor ribbon control device for a start-stop teleprinter
Assignee: Olivetti SpA
•
Filing: 1968-03-20
•
Granted: 1970-09-29
•
Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Bruno Sandrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:56
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/04; B41J35/10; B41J35/12; B41J35/14; B41J33/00; B41J33/14; B41J33/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |