US3427733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionomeric resin stiffening element
Assignee: Beckwith Arden Inc
•
Filing: 1966-10-03
•
Granted: 1969-02-18
•
Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Beckwith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:20
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/08; A43B23/081; A43B23/086; A43B3/00; A43B3/0036; A43B3/0078; A43B3/0084
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734289A
Cited
US2492413A
Cited
US2618796A
Cited
US2611195A
Cited
US3113906A
Cited
US3170252A
Cited
US3115651A
Cited
US3264272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |