US2998261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air suspension system for tandem axles
Assignee: BARTLETT TRAILER CORP
•
Filing: 1959-07-15
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Granted: 1961-08-29
•
Expires: 1979-07-15
Abstract
No abstract record available.
Inventors
- 👤 Percy H Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:10
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G11/27; B60G5/00; B60G5/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US820707A
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US2575064A
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US2941816A
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US2901242A
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US2814480A
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US2879077A
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US2891786A
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US2882068A
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US2896964A
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US2879076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |