US2544134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid pulsator system with pressure compensation
Assignee: United Aircraft Products Inc
•
Filing: 1943-09-16
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Granted: 1951-03-06
•
Expires: 1963-09-16
Abstract
No abstract record available.
Inventors
- 👤 Warren H Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:48
CPC Classifications
F; F15; F15B; F15B7/00; F15B7/06; F15B7/10; F15B7/005; F15B7/008; F15B7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1633463A
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US1606224A
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GB389930A
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US2092721A
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US2205046A
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GB522119A
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US2286661A
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US2348323A
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US2286452A
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US2330678A
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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) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |