Patent US2718168A successfully refreshed from Google Patents.
US3482552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan assembly of the variable air delivery type
Assignee: Aisin Corp
•
Filing: 1967-12-06
•
Granted: 1969-12-09
•
Expires: 1987-12-06
Abstract
No abstract record available.
Inventors
- 👤 Minoru Toyoda
- 👤 Uichiro Kobashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:36
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/34; F04D29/36; F04D29/362; F04D29/368; F01; F01P; F01P7/00; F01P7/02; F01P7/06; F01P7/08; F01P5/00; F01P5/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1920883A
Cited
US2637308A
Cited
US2982361A
Cited
GB905002A
Cited
US3094975A
Cited
US2993483A
Cited
US3217849A
Cited
US3394682A
Cited
US3369610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |