Patent US3425443A successfully refreshed from Google Patents.
US3425443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning
Assignee: Buensod Stacey Corp
•
Filing: 1965-09-23
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Granted: 1969-02-04
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Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 William E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:52
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/75; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/785; Y10T137/7852
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2349719A
Cited
US1284154A
Cited
US2890716A
Cited
US3060960A
Cited
US3053275A
Cited
US3242943A
Cited
US3191615A
Cited
US3292657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |