US3051071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soffit ventilated attics and ventilator members therefor
Assignee: AIR CONTROL PRODUCTS Inc
•
Filing: 1958-04-16
•
Granted: 1962-08-28
•
Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Robert L Leigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:13
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/15; E04D13/152; E04D13/17; E04D13/178; F; F24; F24F; F24F7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US477545A
Cited
GB190625918A
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US1705373A
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US1891240A
Cited
US2261806A
Cited
US2492909A
Cited
US2755728A
Cited
US2767961A
Cited
US2780978A
Cited
US2777381A
Cited
US2954727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |