US3000487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stencil-character-forming apparatus
Assignee: ELLIOTT ADDRESSING MACHINE CO
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Filing: 1960-02-11
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Granted: 1961-09-19
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Expires: 1980-02-11
Abstract
No abstract record available.
Inventors
- 👤 Hans M Friedrichsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:51
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/12
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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |