Patent US3523428A successfully refreshed from Google Patents.
US3523428A
Expired / Lapsed
US
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Air cooling system
Assignee: Garrett Corp
•
Filing: 1969-01-16
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Granted: 1970-08-11
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Expires: 1989-01-16
Abstract
No abstract record available.
Inventors
- 👤 Lorant Nagyszalanczy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:46
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/04; F02C6/06; B; B64; B64D; B64D13/00; B64D13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2391838A
Cited
US889164A
Cited
US2585570A
Cited
US2524065A
Cited
US2842306A
Cited
US2767561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |