US1024438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car-ventilating system.
Assignee: VACUUM CAR VENTILATING Co
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Filing: 1909-10-19
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Granted: 1912-04-23
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Expires: 1929-10-19
Abstract
No abstract record available.
Inventors
- 👤 Dwight I Cooke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:33
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00357; B60H1/00371; B61; B61D; B61D27/00; B61D27/0018
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) | 1915-04-23 | 1915-10-23 | 1916-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-04-23 | 1919-10-23 | 1920-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-04-23 | 1923-10-23 | 1924-04-23 | $7700.00 | Window Closed / Lapsed |