Patent US3282298A successfully refreshed from Google Patents.
US3282298A
Expired / Lapsed
US
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Headerduct for cellular floor
Assignee: Schneider Electric USA Inc
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Filing: 1963-05-14
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Granted: 1966-11-01
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Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 James W Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:06
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733036A
Cited
USRE25042E
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US2763294A
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US2987909A
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US3003794A
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US3070252A
Cited
US3093933A
Cited
US3029964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |