US3532204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spacing and ribbon feed mechanism for typewriters
Assignee: Oki Electric Industry Co Ltd
•
Filing: 1968-03-06
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Granted: 1970-10-06
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Expires: 1988-03-06
Abstract
No abstract record available.
Inventors
- 👤 Rentaro Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:32
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/14; B41J33/40; B41J33/42; B41J29/00; B41J29/18; B41J33/44; B41J33/51; B41J33/518; B41J35/00; B41J35/20
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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |