Patent US2793885A successfully refreshed from Google Patents.
US2793885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Journal box dust guards
Assignee: American Brake Shoe Co
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Filing: 1954-07-12
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Granted: 1957-05-28
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Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Llewellyn E Hoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:27
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/20; B61F15/22; F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; F16C2326/00; F16C2326/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US708491A
Cited
US1516197A
Cited
US2151410A
Cited
US2165102A
Cited
US2211189A
Cited
US2152937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |