US3524398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system for vehicle operator enclosure
Assignee: JOHN C WINFREY
•
Filing: 1968-06-17
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Granted: 1970-08-18
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Expires: 1988-06-17
Abstract
No abstract record available.
Inventors
- 👤 John C Winfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:03
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00357; B60H1/00378; A; A01; A01B; A01B41/00; A01B41/02; B60H3/00; B62; B62D; B62D33/00; B62D33/06; B62D33/0617; F; F24; F24F; F24F8/00; F24F8/10; F24F8/117; F24F8/125
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) | 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 |