Patent US2961999A successfully refreshed from Google Patents.
US2961999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pens
Assignee: Individual
•
Filing: 1954-07-27
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Granted: 1960-11-29
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Expires: 1974-07-27
Abstract
No abstract record available.
Inventors
- 👤 Torchi Aldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:00
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/02; B43K5/14
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |