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US2912229A
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US
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Vehicle impeding device
Assignee: Individual
•
Filing: 1958-06-30
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Granted: 1959-11-10
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Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Persgard Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:33
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/12; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |