Patent US3969307A successfully refreshed from Google Patents.
Patent US2865330A successfully refreshed from Google Patents.
US2865330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instrument
Assignee: Individual
•
Filing: 1954-11-26
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Granted: 1958-12-23
•
Expires: 1974-11-26
Abstract
No abstract record available.
Inventors
- 👤 Everett R Swank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:53
CPC Classifications
B; B43; B43K; B43K21/00; B43K21/02; B43K21/16; B43K21/20; B43K21/027; B43K21/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US70598A
Cited
US2311906A
Cited
US2166751A
Cited
US2436437A
Cited
US2469411A
Cited
US2561113A
Cited
US2645204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |