US2847751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a ball for ball point pen
Assignee: Paper Mate Manufacturing Co
•
Filing: 1955-06-13
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Granted: 1958-08-19
•
Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Meuriel F Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:20
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49712; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T29/49854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1240398A
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US1527971A
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FR894857A
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CH250923A
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US2536124A
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FR1009193A
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US2548264A
Cited
US2532655A
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |