US2495013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pen
Assignee: Eversharp Inc
•
Filing: 1945-03-07
•
Granted: 1950-01-17
•
Expires: 1965-03-07
Abstract
No abstract record available.
Inventors
- 👤 Martin Henry George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:46
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/02; B43K7/06; B43K1/00; B43K1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1179086A
Cited
US1271457A
Cited
US1327729A
Cited
US1527971A
Cited
US1885171A
Cited
GB498997A
Cited
US2265055A
Cited
US2361478A
Cited
US2397229A
Cited
GB564173A
Cited
GB564172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |