US2970558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for reshaping the tips of ball point pens
Assignee: Individual
•
Filing: 1956-12-17
•
Granted: 1961-02-07
•
Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 Sauro A Albertini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:19
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T29/49854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US359755A
Cited
US1297819A
Cited
US1922087A
Cited
GB442124A
Cited
US2234182A
Cited
US2286511A
Cited
US2498009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |