US1236263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-resistance speed-control device for automobiles.
Assignee: Individual
•
Filing: 1917-02-19
•
Granted: 1917-08-07
•
Expires: 1937-02-19
Abstract
No abstract record available.
Inventors
- 👤 William C Carnegie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:07
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/02
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) | 1920-08-06 | 1921-02-05 | 1921-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-08-06 | 1925-02-05 | 1925-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-08-06 | 1929-02-05 | 1929-08-07 | $7700.00 | Window Closed / Lapsed |