Patent US2427222A successfully refreshed from Google Patents.
US2427222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pen
Assignee: Individual
•
Filing: 1945-02-07
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Granted: 1947-09-09
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Expires: 1965-02-07
Abstract
No abstract record available.
Inventors
- 👤 Mellonis Constantine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:23
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/02; B43K5/06; B43K5/08
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) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |