Patent US2308736A successfully refreshed from Google Patents.
Patent US3121571A successfully refreshed from Google Patents.
US3121571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced seal for railroad car axle journal box
Assignee: Individual
•
Filing: 1960-08-16
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Granted: 1964-02-18
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Expires: 1980-08-16
Abstract
No abstract record available.
Inventors
- 👤 Karl A Klingler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:45
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/20; B61F15/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN COMBINATION, A SEAL FOR RAILROAD CAR AXLE JOURNAL BOXES INCLUDING A MEMBER HAVING A CENTRAL APERTURE, AN INTEGRAL THICKENED RIB ENCIRCLING THE MEMBER AND ENCOMPASSING SAID APERTURE, A PLURALITY OF SEGMENTAL STIFF REINFORCING MEMBERS EACH EXTENDING A PART WAY AROUND THE APERTURE OVERLAPPING AT THEIR ENDS ONLY, BURIED IN AND HELD IN POSITION BY THE RIB, THE ASSEMBLY OF SEGMENTAL MEMBERS DEFINING AN ANNULAR REINFORCEMENT FOR THE
Claim 2
Dependent Claim
68 words
IN COMBINATION, A SEAL FOR RAILROAD CAR AXLE JOURNAL BOXES INCLUDING A MEMBER HAVING A CENTRAL APERTURE, AN INTEGRAL THICKENED RIB ENCIRCLING THE MEMBER AND ENCOMPASSING SAID APERTURE, A PLURALITY OF SEGMENTAL STIFF REINFORCING MEMBERS EACH EXTENDING A PART WAY AROUND THE APERTURE OVERLAPPING AT THEIR ENDS ONLY, BURIED IN AND HELD IN POSITION BY THE RIB, THE ASSEMBLY OF SEGMENTAL MEMBERS DEFINING AN ANNULAR REINFORCEMENT FOR THE
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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) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |