Patent US3783462A successfully refreshed from Google Patents.
Patent US2522553A successfully refreshed from Google Patents.
US2522553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain pen
Assignee: Parker Pen Co
•
Filing: 1945-03-26
•
Granted: 1950-09-19
•
Expires: 1965-03-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Wittnebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:12
CPC Classifications
B; B43; B43K; B43K5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US30828A
Cited
US255205A
Cited
US260134A
Cited
US264451A
Cited
US337610A
Cited
US1001225A
Cited
GB191024634A
Cited
US1336110A
Cited
US1493680A
Cited
US1611234A
Cited
US2114118A
Cited
US2397229A
Cited
US2396058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |