US2966937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-levelling seat support
Assignee: Individual
•
Filing: 1958-07-15
•
Granted: 1961-01-03
•
Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Rudolph C Rydberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:41
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/02; B60N2/0224; B60N2/02246; B60N2/0244; B60N2/0268; B60N2/501
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |