US2952474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic suspension for vehicles
Assignee: GRASCO Inc
•
Filing: 1956-02-23
•
Granted: 1960-09-13
•
Expires: 1976-02-23
Abstract
No abstract record available.
Inventors
- 👤 Gouirand Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:26
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G11/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US629050A
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US1871735A
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US2250134A
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US2631043A
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US2502946A
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US2731276A
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US2694569A
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US2807474A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |