US2516366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protector pen
Assignee: Individual
•
Filing: 1944-05-09
•
Granted: 1950-07-25
•
Expires: 1964-05-09
Abstract
No abstract record available.
Inventors
- 👤 Earl A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:23
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/06; A47D13/061; A47D13/065; A47D9/00; A47D9/016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US677717A
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US732618A
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US852296A
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US902007A
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US961669A
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US1071283A
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GB104735A
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US1340694A
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US1463459A
Cited
GB232887A
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US1604703A
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FR640160A
Cited
US1870285A
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US2041509A
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US2234562A
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US2281672A
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US2308608A
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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) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |