US3258801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pool cleaning device
Assignee: Individual
•
Filing: 1965-09-14
•
Granted: 1966-07-05
•
Expires: 1985-09-14
Abstract
No abstract record available.
Inventors
- 👤 George L Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:26
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A POOL CLEANING DEVICE COMPRISING: A TUBULAR MEMBER HAVING AN OPEN END; A UNIDIRECTIONALLY OPENABLE SCREEN MEMBER POSITIONED IN SAID TUBULAR MEMBER PROXIMATE TO SAID OPEN END AND ADAPTED TO MOVE OUT OF THE WAY OF DEBRIS BEING CARRIED INTO SAID TUBULAR MEMBER BY INFLOWING LIQUID; A CLOSABLE OPENING IN SAID TUBULAR MEMBER POSITIONED REMOTE FROM SAID OPEN END TO PERMIT THE PASSAGE OF AIR TO AND FROM SAID TUBULAR MEMBER.
Claim 2
Dependent Claim
71 words
A POOL CLEANING DEVICE COMPRISING: A TUBULAR MEMBER HAVING AN OPEN END; A UNIDIRECTIONALLY OPENABLE SCREEN MEMBER POSITIONED IN SAID TUBULAR MEMBER PROXIMATE TO SAID OPEN END AND ADAPTED TO MOVE OUT OF THE WAY OF DEBRIS BEING CARRIED INTO SAID TUBULAR MEMBER BY INFLOWING LIQUID; A CLOSABLE OPENING IN SAID TUBULAR MEMBER POSITIONED REMOTE FROM SAID OPEN END TO PERMIT THE PASSAGE OF AIR TO AND FROM SAID TUBULAR MEMBER.
References Cited (Backward Citations)
US1101541A
Cited
US2081597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |