US3428969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-retaining recreational structure for swimming pools and the like
Assignee: Coleco Industries Inc
•
Filing: 1967-07-17
•
Granted: 1969-02-25
•
Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph Diemond
- 👤 Melvin Y Gershman
- 👤 Henry L Sundberg Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:44
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/0018; E04H4/0043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US488451A
Cited
US592738A
Cited
US1233080A
Cited
US1652415A
Cited
US3225362A
Cited
US3233251A
Cited
US3315278A
Cited
US3274621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |