Patent US2161691A successfully refreshed from Google Patents.
US2161691A
Expired / Lapsed
US
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Fountain pen cap latching device
Assignee: Individual
•
Filing: 1938-07-18
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Granted: 1939-06-06
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Expires: 1958-07-18
Abstract
No abstract record available.
Inventors
- 👤 Matt A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:08
CPC Classifications
B; B43; B43K; B43K23/00; B43K23/08; B43K23/12; B43K23/126; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |