US3482671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back space mechanism for typewriters and like machines
Assignee: SCM Corp
•
Filing: 1968-01-03
•
Granted: 1969-12-09
•
Expires: 1988-01-03
Abstract
No abstract record available.
Inventors
- 👤 Richard E Shattuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:44
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/60; B41J19/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |