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US2720293A
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Automatic safety braking system
Assignee: Individual
•
Filing: 1952-12-01
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Granted: 1955-10-11
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Expires: 1972-12-01
Abstract
No abstract record available.
Inventors
- 👤 Brinkmeyer John Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:54
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/02; B60T7/04; B60T7/045; B60T7/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1519213A
Cited
US2189192A
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US2254349A
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US2499276A
Cited
US2574255A
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US2519774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |