US2489536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-way drive for air conditioning blowers
Assignee: Motors Liquidation Co
•
Filing: 1946-09-21
•
Granted: 1949-11-29
•
Expires: 1966-09-21
Abstract
No abstract record available.
Inventors
- 👤 Laurence A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00421; F; F01; F01P; F01P5/00; F01P5/02; F01P5/04; F04; F04D; F04D25/00; F04D25/02; F01P2005/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US554138A
Cited
US1021116A
Cited
US1039099A
Cited
US1455910A
Cited
US1833987A
Cited
GB298519A
Cited
US1832726A
Cited
GB462115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |