Patent US2427068A successfully refreshed from Google Patents.
US2427068A
Expired / Lapsed
US
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Ball-point writing instrument
Assignee: Parker Pen Co
•
Filing: 1945-09-17
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Granted: 1947-09-09
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Expires: 1965-09-17
Abstract
No abstract record available.
Inventors
- 👤 Robert W Randolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:26
CPC Classifications
B; B43; B43K; B43K24/00; B43K24/02; B43K24/08; B43K24/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310257A
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US777408A
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US824733A
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US1156287A
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US1206683A
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US1527971A
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US1590394A
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US1725064A
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US1774819A
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US1805347A
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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 |