US2794601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and ventilating systems for vehicles
Assignee: Smiths America Corp
•
Filing: 1953-01-05
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Granted: 1957-06-04
•
Expires: 1973-01-05
Abstract
No abstract record available.
Inventors
- 👤 Clifford S Steadman
- 👤 Ernest J Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/22; B60H1/2203; B60H1/2209; B60H1/00007; B60H1/02; B60H1/03; B60H1/032; B60H2001/2228; B60H2001/2237; B60H2001/2268; B60H2001/2287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2009823A
Cited
US2026929A
Cited
US2103835A
Cited
US2388210A
Cited
US2621857A
Cited
US2631517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |