US3702211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame for rooftop air conditioner
Assignee: Carrier Corp
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Filing: 1971-07-14
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Granted: 1972-11-07
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Expires: 1991-07-14
Abstract
Abstract A FRAME FOR A ROOFTOP AIR CONDITIONING UNIT FOR MOUNTING HEATING AND/OR COOLING ELEMENTS THEREIN AND SUITABLE ACCESS PANELS THEREON TO PROVIDE AN INTEGRATED, WEATHER TIGHT AIR CONDITIONING UNIT.
Inventors
- 👤 Robert L Young
- 👤 Russell E Wood
- 👤 Samuel D Farney
- 👤 Arnold U Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:07
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/022; E; E04; E04H; E04H1/00; E04H1/12; E04H1/1205; E04H1/1238; F24F13/00; F24F13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |