Patent US2926031A successfully refreshed from Google Patents.
US2926031A
Expired / Lapsed
US
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Dust guard for journal boxes
Assignee: Individual
•
Filing: 1957-06-21
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Granted: 1960-02-23
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Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 John D Herr
- 👤 Dick W Mount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:15
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/20; B61F15/22; Y; Y10; Y10S; Y10S277/00; Y10S277/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US451196A
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US751306A
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DE468847C
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US688754A
Cited
US1121316A
Cited
GB296770A
Cited
US2017615A
Cited
US2223519A
Cited
US2397753A
Cited
US2638363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |