Patent US3215078A successfully refreshed from Google Patents.
US3215078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled volume piezoelectric pumps
Assignee: Individual
•
Filing: 1964-08-31
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Granted: 1965-11-02
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Charles L Stec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:11
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/09; F04B43/095; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PUMP COMPRISING: A HOLLOW ELECTRO-STRICTIVE BODY HAVING A PUMPING SURFACE; ASND A NONADHERING PLASTIC MEMBER IN INTIMATE CONTACT WITH THE PUMPING SURFACE OF SAID ELECTRO-STRICTIVE BODY; WHEREBY A PUMPING CHAMBER IS FORMED BETWEEN SAID PLASTIC MEMBER AND SAID ELECTRO-STRUCTIVE BODY BY THE DEFORMATION OF SAID ELECTRO-STRICTIVE BODY.
Claim 2
Dependent Claim
48 words
A PUMP COMPRISING: A HOLLOW ELECTRO-STRICTIVE BODY HAVING A PUMPING SURFACE; ASND A NONADHERING PLASTIC MEMBER IN INTIMATE CONTACT WITH THE PUMPING SURFACE OF SAID ELECTRO-STRICTIVE BODY; WHEREBY A PUMPING CHAMBER IS FORMED BETWEEN SAID PLASTIC MEMBER AND SAID ELECTRO-STRUCTIVE BODY BY THE DEFORMATION OF SAID ELECTRO-STRICTIVE BODY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |