US2528408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pen
Assignee: Parker Pen Co
•
Filing: 1947-07-11
•
Granted: 1950-10-31
•
Expires: 1967-07-11
Abstract
No abstract record available.
Inventors
- 👤 Harlan H Zodtner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
B; B43; B43K; B43K5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US715359A
Cited
US1001225A
Cited
US2187528A
Cited
US2319244A
Cited
US2311488A
Cited
US2342904A
Cited
US2360297A
Cited
US2410423A
Cited
US2421079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |