US3412967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient seat support
Assignee: Swenson Corp
•
Filing: 1966-06-22
•
Granted: 1968-11-26
•
Expires: 1986-06-22
Abstract
No abstract record available.
Inventors
- 👤 Richard F Swenson
- 👤 William P Wohlford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:37
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA562326A
Cited
US2503796A
Cited
US2840140A
Cited
US3006593A
Cited
US2936818A
Cited
US2991970A
Cited
US3085778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |