US2504353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pen
Assignee: Individual
•
Filing: 1946-10-03
•
Granted: 1950-04-18
•
Expires: 1966-10-03
Abstract
No abstract record available.
Inventors
- 👤 Anthony G Rosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:46
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US448937A
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US451808A
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US600299A
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GB191102939A
Cited
US1500426A
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FR800851A
Cited
GB476971A
Cited
US2107424A
Cited
CH218660A
Cited
US2390636A
Cited
US2425198A
Cited
US2427068A
Cited
US2435185A
Cited
US2432061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |