Patent US3074079A successfully refreshed from Google Patents.
US3074079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable cover for swimming pools
Assignee: Individual
•
Filing: 1961-06-05
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Granted: 1963-01-22
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Isaacson Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:12
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/06; E04H4/10; Y; Y10; Y10S; Y10S135/00; Y10S135/912; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588; Y10T74/20594
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A RETRACTABLE SWIMMING POOL COVER; A PAIR OF LINKED STRUCTURES EACH DEFINING AN UPRIGHT LAZY TONGS, EACH OF THE STRUCTURES HAVING A MOVABLE END ELEMENT GROUND-ENGAGING WHEELS CARRIED BY THE STRUCTURES FOR SUPPORTING THE STRUCTURES FOR TRANVERSE ALONG THE SIDES OF A SWIMMING POOL; A FOLDABLE COVER HAVING SIDES SECURED TO THE RESPECTIVE STRUCTURES; A SERIES OF RESILIENT MEANS BETWEEN THE LINKS OF THE STRUCTURES FOR EXTENDING THE STRUCTURES; AND POWER MEANS FOR CONTRACTING THE STRUC-
Claim 2
Dependent Claim
77 words
IN A RETRACTABLE SWIMMING POOL COVER; A PAIR OF LINKED STRUCTURES EACH DEFINING AN UPRIGHT LAZY TONGS, EACH OF THE STRUCTURES HAVING A MOVABLE END ELEMENT GROUND-ENGAGING WHEELS CARRIED BY THE STRUCTURES FOR SUPPORTING THE STRUCTURES FOR TRANVERSE ALONG THE SIDES OF A SWIMMING POOL; A FOLDABLE COVER HAVING SIDES SECURED TO THE RESPECTIVE STRUCTURES; A SERIES OF RESILIENT MEANS BETWEEN THE LINKS OF THE STRUCTURES FOR EXTENDING THE STRUCTURES; AND POWER MEANS FOR CONTRACTING THE STRUC-
References Cited (Backward Citations)
GB299110A
Cited
US2237141A
Cited
US2470337A
Cited
US2486170A
Cited
US2754900A
Cited
US2788849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |