US2605747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pencil point sharpener
Assignee: Individual
•
Filing: 1950-04-11
•
Granted: 1952-08-05
•
Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 William V Eakins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:10
CPC Classifications
B; B43; B43L; B43L23/00; B43L23/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US710822A
Cited
US1102753A
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US1125060A
Cited
CH71704A
Cited
US1202975A
Cited
US1413080A
Cited
US2242458A
Cited
US2452697A
Cited
US2452696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |