Patent US2845280A successfully refreshed from Google Patents.
US2845280A
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Hydraulically interconnected spring suspension system
Assignee: Goodrich Corp
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Filing: 1955-09-27
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Granted: 1958-07-29
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Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Alvin S Krotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:51
CPC Classifications
B; B60; B60G; B60G21/00; B60G21/10; B60G11/00; B60G11/22; B60G11/23; C; C07; C07C; C07C233/00; Y; Y10; Y10S; Y10S267/00; Y10S267/01; Y10S280/00; Y10S280/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1601939A
Cited
US1947337A
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US1976951A
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US2003511A
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US2555649A
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US2788222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |