US3063470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsation dampener device
Assignee: Westinghouse Air Brake Co
•
Filing: 1959-02-25
•
Granted: 1962-11-13
•
Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 Walter R Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:32
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; F16L55/054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283439A
Cited
US2345475A
Cited
US2378467A
Cited
US2845951A
Cited
US2841181A
Cited
US2875788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |