Patent US3528110A successfully refreshed from Google Patents.
US3528110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoyant swimming pool covers
Assignee: EDWARD E WOYCIK
•
Filing: 1967-11-16
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Granted: 1970-09-15
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Expires: 1987-11-16
Abstract
No abstract record available.
Inventors
- 👤 Edward E Woycik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:18
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/06; E04H4/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1736825A
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AU1378028A
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US2888717A
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US2884156A
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US3091777A
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US3077610A
Cited
BE660246A
Cited
US3391410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |