Patent US3469587A successfully refreshed from Google Patents.
US3469587A
Expired / Lapsed
US
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Collapsible weatherproof cover for swimming pools
Assignee: FOLDWAY COVERS Ltd
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Filing: 1967-12-22
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Granted: 1969-09-30
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Expires: 1987-12-22
Abstract
No abstract record available.
Inventors
- 👤 David Folkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:37
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/02; E04H15/32; E04H15/34; E04H15/44; E04H15/48; E04H15/52; E04H3/00; E04H3/10; E04H3/14; E04H3/16; E04H3/165; Y; Y10; Y10S; Y10S135/00; Y10S135/906
Claims Analysis
Total Claims: 0
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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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |