US2785100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying an advertising and eraser-retaining ferrule to a pencil shaft
Assignee: Individual
•
Filing: 1952-06-25
•
Granted: 1957-03-12
•
Expires: 1972-06-25
Abstract
No abstract record available.
Inventors
- 👤 Robert E Yaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:39
CPC Classifications
B; B43; B43K; B43K29/00; B43K29/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038; Y10T156/1052; Y10T156/1062; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1866168A
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US2465597A
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US2593846A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |