US2938618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zone controlled carriage return mechanism for typewriters
Assignee: Individual
•
Filing: 1959-01-08
•
Granted: 1960-05-31
•
Expires: 1979-01-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Niccolls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:26
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |