US3418667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating swimming pool cover
Assignee: Individual
•
Filing: 1966-07-05
•
Granted: 1968-12-31
•
Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Roy Y Powlau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:14
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/06; E04H4/08; E04H4/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A POOL COVER COMPRISING A PLURALITY OF FLOATABLE SLABS SERIALLY CONNECTED TO ONE ANOTHER, A PLURALITY OF TINE MEMBERS MOUNTED IN AT LEAST RACK AT ONE WALL OF THE POOL, SAID TINE MEMBERS BEING MOVABLE IN THE RACK THROUGH THE PLANE OF THE SURFACE OF THE POOL FOR SERIATIM ENGAGEMENT WITH SAID SLABS, MEANS ON THE RACK FOR MOVING SAID TINE
Claim 2
Dependent Claim
61 words
A POOL COVER COMPRISING A PLURALITY OF FLOATABLE SLABS SERIALLY CONNECTED TO ONE ANOTHER, A PLURALITY OF TINE MEMBERS MOUNTED IN AT LEAST RACK AT ONE WALL OF THE POOL, SAID TINE MEMBERS BEING MOVABLE IN THE RACK THROUGH THE PLANE OF THE SURFACE OF THE POOL FOR SERIATIM ENGAGEMENT WITH SAID SLABS, MEANS ON THE RACK FOR MOVING SAID TINE
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |