Patent US2204218A successfully refreshed from Google Patents.
US2204218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing car-seat base
Assignee: Heywood Wakefield Co
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Filing: 1937-12-24
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Granted: 1940-06-11
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Expires: 1957-12-24
Abstract
No abstract record available.
Inventors
- 👤 Oiva E Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:38
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/06; B62D33/063; B62D33/0633; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/14; B60N2/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-06-11 | 1943-12-11 | 1944-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-06-11 | 1947-12-11 | 1948-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-06-11 | 1951-12-11 | 1952-06-11 | $7700.00 | Window Closed / Lapsed |