Patent US2691336A successfully refreshed from Google Patents.
US2691336A
Expired / Lapsed
US
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Window ventilating device
Assignee: CARRICK PRODUCTS CO
•
Filing: 1950-10-03
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Granted: 1954-10-12
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Expires: 1970-10-03
Abstract
No abstract record available.
Inventors
- 👤 Albert E Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:38
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/64; F04D29/644; F04D29/646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1954017A
Cited
US1988810A
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US2029610A
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US2052453A
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US2035653A
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US2054292A
Cited
US2232459A
Cited
US2040911A
Cited
US2081103A
Cited
US2279271A
Cited
US2296635A
Cited
US2487294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |