US2597109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake system for vehicles
Assignee: Kropp Forge Co
•
Filing: 1949-08-20
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Granted: 1952-05-20
•
Expires: 1969-08-20
Abstract
No abstract record available.
Inventors
- 👤 Roy A Kropp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:15
CPC Classifications
B; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/08; B64; B64C; B64C25/00; B64C25/32; B64C25/42; B64C25/44; B64C25/48; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20189; Y10T74/20207; Y10T74/20213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358730A
Cited
US1224826A
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US1334345A
Cited
US2094364A
Cited
US2369936A
Cited
US2387236A
Cited
US2443331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |