Patent US3390740A successfully refreshed from Google Patents.
US3390740A
Expired / Lapsed
US
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Cantilever ladder type diving board for swimming pool
Assignee: WILLIAM J BRANDEL
•
Filing: 1965-07-14
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Granted: 1968-07-02
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Expires: 1985-07-14
Abstract
No abstract record available.
Inventors
- 👤 William J Brandel
- 👤 Robert H Schmidt
- 👤 Robert B Fergestrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:19
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/144; A; A63; A63B; A63B5/00; A63B5/08; A63B5/10; A63B2208/00; A63B2208/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1714044A
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US2676677A
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US2858915A
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US2896831A
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US3036712A
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US2962112A
Cited
AT210592B
Cited
US3012626A
Cited
US3288248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |