US3494596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool grab rail with guard panel
Assignee: Marine Swimming Pool Equipment Co
•
Filing: 1968-10-29
•
Granted: 1970-02-10
•
Expires: 1988-10-29
Abstract
No abstract record available.
Inventors
- 👤 Bernard Bellinson
- 👤 Henry R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:02
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; E04F11/1851; E04H; E04H4/00; E04H4/14; E04H4/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US638233A
Cited
US2873094A
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US3007539A
Cited
US2974746A
Cited
US3094198A
Cited
US3362119A
Cited
US3352541A
Cited
US3355848A
Cited
US3390740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |