Patent US2531733A successfully refreshed from Google Patents.
US2531733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air outlet device
Assignee: Anemostat Corp of America
•
Filing: 1945-08-08
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Granted: 1950-11-28
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Expires: 1965-08-08
Abstract
No abstract record available.
Inventors
- 👤 Honerkamp Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:33
CPC Classifications
B; B61; B61D; B61D27/00; B61D27/009; B60; B60H; B60H1/00; B60H1/24; B60H1/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB283258A
Cited
US1685701A
Cited
US2010322A
Cited
US2144631A
Cited
US2185919A
Cited
US2229747A
Cited
US2372830A
Cited
US2316541A
Cited
US2380553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |