US3480323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient ventilated back and seat support
Assignee: Individual
•
Filing: 1968-02-06
•
Granted: 1969-11-25
•
Expires: 1988-02-06
Abstract
No abstract record available.
Inventors
- 👤 Louis Propus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:35
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/74; A47C7/742; A47C5/00; A47C5/04; A47C5/06; A47C7/36; A47C7/40; A47C7/42; A47C7/425; B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/70; B60N2/7005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857008A
Cited
US2007075A
Cited
US2812804A
Cited
US2937696A
Cited
US3014761A
Cited
US3289222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |