Patent US2722266A successfully refreshed from Google Patents.
US2722266A
Expired / Lapsed
US
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Refrigerated seat and/or back rest
Assignee: Individual
•
Filing: 1953-04-03
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Granted: 1955-11-01
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Expires: 1973-04-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Kersten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:28
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00271; B60H1/00285; B60N; B60N2/00; B60N2/56; B60N2/5607; B60N2/5614; B60N2/58; B60N2/60; B60H2001/00307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US800967A
Cited
US1991784A
Cited
US2004106A
Cited
US2260134A
Cited
US2544506A
Cited
US2562121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |