US3348880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable back supprot cushions
Assignee: Individual
•
Filing: 1966-04-14
•
Granted: 1967-10-24
•
Expires: 1986-04-14
Abstract
No abstract record available.
Inventors
- 👤 David T Swann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:49
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/42; A47C7/425; B; B60; B60N; B60N2/00; B60N2/70; B60N2/7005; B60N2/90; B60N2/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB414131A
Cited
US2605818A
Cited
US2838099A
Cited
GB754248A
Cited
GB847192A
Cited
US3093407A
Cited
US3192541A
Cited
US3161436A
Cited
US3099892A
Cited
US3165355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |