US3103179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: Hayward Tyler and Co Ltd
•
Filing: 1961-08-29
•
Granted: 1963-09-10
•
Expires: 1981-08-29
Abstract
No abstract record available.
Inventors
- 👤 Ivanoff Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:48
CPC Classifications
F; F04; F04D; F04D33/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PUMP COMPRISING A CHAMBER FOR CONTAINING A LIQUID TO BE PUMPED, AN OUTLET FROM SAID CHAMBER, MEANS DEFINING A REGION OF REDUCED CROSS-SECTION IN SAID CHAMBER, SAID REGION BEING IN FLUID COMMUNICATION WITH THE REMAINDER OF SAID CHAMBER, A PLUNGER EXTENDING WITH CLEARANCE THROUGH SAID REGION, AN INLET COMMUNICATING WITH SAID CHAMBER AT SAID REGION, AND MEANS FOR OSCIL-
Claim 2
Dependent Claim
60 words
A PUMP COMPRISING A CHAMBER FOR CONTAINING A LIQUID TO BE PUMPED, AN OUTLET FROM SAID CHAMBER, MEANS DEFINING A REGION OF REDUCED CROSS-SECTION IN SAID CHAMBER, SAID REGION BEING IN FLUID COMMUNICATION WITH THE REMAINDER OF SAID CHAMBER, A PLUNGER EXTENDING WITH CLEARANCE THROUGH SAID REGION, AN INLET COMMUNICATING WITH SAID CHAMBER AT SAID REGION, AND MEANS FOR OSCIL-
References Cited (Backward Citations)
US260921A
Cited
US2273896A
Cited
US2305022A
Cited
US2508950A
Cited
US2872877A
Cited
US2954736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |