Patent US3487668A successfully refreshed from Google Patents.
US3487668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaping and forming articles
Assignee: AT&T Inc
•
Filing: 1966-07-12
•
Granted: 1970-01-06
•
Expires: 1986-07-12
Abstract
No abstract record available.
Inventors
- 👤 Francis Joseph Fuchs Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:20
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/033; B21D26/045; B21D26/035; B21D26/043; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0591; Y10T83/0596
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |