US3376831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically dampened car bogie
Assignee: Dresser Industries Inc
•
Filing: 1965-04-27
•
Granted: 1968-04-09
•
Expires: 1985-04-27
Abstract
No abstract record available.
Inventors
- 👤 Lyle E Eaton
- 👤 William H Hoerr
- 👤 John H Hyler
- 👤 Wayne H Mcglade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:19
CPC Classifications
B; B61; B61C; B61C9/00; B61C9/38; B61C9/48; B61C9/50; B61F; B61F5/00; B61F5/02; B61F5/14; B61F5/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2333057A
Cited
US2877719A
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US2862459A
Cited
US2908230A
Cited
US3181479A
Cited
US3020857A
Cited
US3162275A
Cited
US3244117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |