US2601846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing pen assembly
Assignee: Esterbrook Pen Co
•
Filing: 1947-05-17
•
Granted: 1952-07-01
•
Expires: 1967-05-17
Abstract
No abstract record available.
Inventors
- 👤 Henry C Klagges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:37
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/18
Claims Analysis
Total Claims: 0
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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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |