US3366067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump assembly
Assignee: Individual
•
Filing: 1966-04-25
•
Granted: 1968-01-30
•
Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Kocolowski Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/04; F02; F02B; F02B1/00; F04B17/00; F04B17/03; F04B17/04; F04B17/042; F04B43/0009; F04B43/0036; F04B43/0054; F02M; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PUMP ASSEMBLY COMPRISING; WALL MEANS DEFINING A CHAMBER MEANS, SAID WALL MEANS INCLUDING FIRST PASSAGE MEANS THROUGH WHICH FLUID ENTERS SAID CHAMBER MEANS AND SECOND PASSAGE MEANS THROUGH WHICH FLUID IS EXPELLED FROM SAID CHAMBER MEANS; PISTON MEANS LOCATED IN SAID CHAMBER MEANS, SAID PISTON MEANS BEING POSITIONED SEPARATE FROM AND ADJACENT TO SAID WALL MEANS TO ENABLE SAID PISTON MEANS TO MOVE FREELY IN SAID CHAMBER MEANS, SAID PISTON MEANS INCLUDING A FIRST ELEMENT OF A MAGNETIZABLE MATERIAL AND A SECOND ELEMENT OF A RESILIENTLY COMPRESSIBLE MATERIAL; AND ELECTROMAGNET MEANS SUPPORTED BY SAID WALL MEANS, SAID ELECTROMAGNET MEANS BEING SELECTIVELY ENERGIZABLE TO ATTRACT SAID FIRST PISTON ELEMENT AND CONTEMPO-
Claim 2
Dependent Claim
111 words
A PUMP ASSEMBLY COMPRISING; WALL MEANS DEFINING A CHAMBER MEANS, SAID WALL MEANS INCLUDING FIRST PASSAGE MEANS THROUGH WHICH FLUID ENTERS SAID CHAMBER MEANS AND SECOND PASSAGE MEANS THROUGH WHICH FLUID IS EXPELLED FROM SAID CHAMBER MEANS; PISTON MEANS LOCATED IN SAID CHAMBER MEANS, SAID PISTON MEANS BEING POSITIONED SEPARATE FROM AND ADJACENT TO SAID WALL MEANS TO ENABLE SAID PISTON MEANS TO MOVE FREELY IN SAID CHAMBER MEANS, SAID PISTON MEANS INCLUDING A FIRST ELEMENT OF A MAGNETIZABLE MATERIAL AND A SECOND ELEMENT OF A RESILIENTLY COMPRESSIBLE MATERIAL; AND ELECTROMAGNET MEANS SUPPORTED BY SAID WALL MEANS, SAID ELECTROMAGNET MEANS BEING SELECTIVELY ENERGIZABLE TO ATTRACT SAID FIRST PISTON ELEMENT AND CONTEMPO-
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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |