Patent US3140505A successfully refreshed from Google Patents.
US3140505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing pen
Assignee: Individual
•
Filing: 1963-05-21
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Granted: 1964-07-14
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Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Shimamura Shigeki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:28
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/02; B43K8/04; B43K8/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A PEN CHARACTERIZED BY A ROD-LIKE BODY FORMED OF A ROLLED SHEET OF A FIBROUS MATERIAL SUCH AS PAPER, PAPER PULP AND SIMILAR MATERIAL, TO BOTH SURFACES OF WHICH SHEET OF MATERIAL A SYNTHETIC RESIN HAS BEEN APPLIED BEFORE ROLLING, AND THE BODY HAVING A TAPERED CONICAL TIP AND AND FURTHER HAVING A HARD CORE, ONE END OF WHICH
References Cited (Backward Citations)
US2983254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |