US2874458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an air spring
Assignee: Bridgestone Firestone Inc
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Filing: 1955-10-10
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Granted: 1959-02-24
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Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Randall D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:32
CPC Classifications
B; B29; B29D; B29D22/00; B29D22/02; B29D22/023; F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/0454; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49844; Y10T29/49877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1867540A
Cited
US2029060A
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US2221470A
Cited
US2265346A
Cited
US2455737A
Cited
US2558140A
Cited
US2628416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |