Patent US2855898A successfully refreshed from Google Patents.
US2855898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capillary reservoir elements
Assignee: Parker Pen Co
•
Filing: 1955-10-26
•
Granted: 1958-10-14
•
Expires: 1975-10-26
Abstract
No abstract record available.
Inventors
- 👤 John J Dyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:08
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/02; B43K5/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2522555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |