US2920510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicellular expanded material and process of manufacturing same
Assignee: ZF Active Safety US Inc
•
Filing: 1955-10-17
•
Granted: 1960-01-12
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 William A Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:08
CPC Classifications
B; B21; B21D; B21D47/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1961144A
Cited
US2212481A
Cited
US2144231A
Cited
US2210710A
Cited
US2427597A
Cited
US2445801A
Cited
US2639633A
Cited
US2607109A
Cited
US2703998A
Cited
US2701483A
Cited
US2745300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |