US2968319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsation dampener
Assignee: Individual
•
Filing: 1957-10-21
•
Granted: 1961-01-17
•
Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:51
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/16; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/41; F15B2201/415; F15B2201/4155; F15B2201/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731984A
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US2196993A
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US2278688A
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US2354201A
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US2349322A
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US2459317A
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US2530190A
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US2563257A
Cited
US2630834A
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US2712831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |