US2521285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pen
Assignee: Individual
•
Filing: 1946-02-04
•
Granted: 1950-09-05
•
Expires: 1966-02-04
Abstract
No abstract record available.
Inventors
- 👤 James V Dearman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:26
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US392046A
Cited
US634013A
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US748383A
Cited
US1426200A
Cited
US1574281A
Cited
US1935000A
Cited
US2138650A
Cited
US2223541A
Cited
US2333451A
Cited
US2390636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |