Patent US2961033A successfully refreshed from Google Patents.
US2961033A
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US
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Air spring supported seat
Assignee: Milsco Manufacturing Co
•
Filing: 1958-01-20
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Granted: 1960-11-22
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Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 Donald C Galbraith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:53
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/505; B60N2/506; B60N2/52; B60N2/525; F; F41; F41H; F41H7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1898444A
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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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |