Patent US3524328A successfully refreshed from Google Patents.
US3524328A
Expired / Lapsed
US
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Air conditioner construction
Assignee: MERCANTILE TEXAS CREDIT Corp
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Filing: 1968-07-30
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Granted: 1970-08-18
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Expires: 1988-07-30
Abstract
No abstract record available.
Inventors
- 👤 Donald Ray Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:59
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/032; F24F1/0323; F24F1/029; F24F1/0328; F24F1/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2265272A
Cited
US2899803A
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US2250978A
Cited
US2286491A
Cited
US2697921A
Cited
US2699655A
Cited
US2945360A
Cited
US3089315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |