US3520641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric pump
Assignee: Carter Automotive Co Inc
•
Filing: 1968-11-13
•
Granted: 1970-07-14
•
Expires: 1988-11-13
Abstract
No abstract record available.
Inventors
- 👤 Edward H Casey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:53
CPC Classifications
F; F04; F04B; F04B17/00; F04B17/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1400578A
Cited
US2019160A
Cited
US2317166A
Cited
US2664826A
Cited
US2842067A
Cited
US3150592A
Cited
US3361067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |