US2662743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended panel type air conditioner
Assignee: Individual
•
Filing: 1948-02-10
•
Granted: 1953-12-15
•
Expires: 1968-02-10
Abstract
No abstract record available.
Inventors
- 👤 Frenger Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:16
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/04; F24F7/06; F24F7/10; F24D; F24D3/00; F24D3/12; F24D3/16; F24D3/165; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB399681A
Cited
GB403899A
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US2136222A
Cited
US2184113A
Cited
US2089367A
Cited
US2172771A
Cited
US2180945A
Cited
US2382340A
Cited
CH241602A
Cited
US2469963A
Cited
US2480427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |