Patent US2960924A successfully refreshed from Google Patents.
US2960924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distributing conduit system for portable air conditioners
Assignee: Individual
•
Filing: 1957-11-14
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Granted: 1960-11-22
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Expires: 1977-11-14
Abstract
No abstract record available.
Inventors
- 👤 Frank S Grott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:53
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US39237A
Cited
US584259A
Cited
US1146490A
Cited
US1922431A
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US2348455A
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US2658439A
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US2595408A
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US2742250A
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GB782670A
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US2835186A
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US2824575A
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US2796822A
Cited
US2787289A
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US2813741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |