US2837355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure equalizing cover for journal boxes
Assignee: Federal Mogul Bower Bearings Inc
•
Filing: 1955-02-17
•
Granted: 1958-06-03
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Lloyd A Johnson
- 👤 Dan A Christensen
- 👤 Antone D Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/20; B61F15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1836652A
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US2152580A
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US2257119A
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US2258852A
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US2315455A
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US2417853A
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US2668067A
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US2746777A
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US2657080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |