Patent US2762337A successfully refreshed from Google Patents.
US2762337A
Expired / Lapsed
US
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Writing instruments
Assignee: Parker Pen Co
•
Filing: 1952-12-04
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Granted: 1956-09-11
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Expires: 1972-12-04
Abstract
No abstract record available.
Inventors
- 👤 Wendell K Beckwith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:43
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/08; B43K7/00; B43K7/02; B43K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB189914133A
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GB190821631A
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US2106046A
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US2581739A
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FR933412A
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US2513380A
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GB645705A
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CH278969A
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FR995271A
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DE825966C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |