US3030925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instruments
Assignee: Parker Pen Co
•
Filing: 1957-06-17
•
Granted: 1962-04-24
•
Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Dyson John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:18
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/005; B43K7/00; B43K7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CH213442A
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US2392388A
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US2462929A
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US2478229A
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US2562782A
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US2764085A
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US2693458A
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US2804388A
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BE531128A
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US2891511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |