US3171817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension for casting a metal containing film
Assignee: GTE Sylvania Inc
•
Filing: 1961-04-27
•
Granted: 1965-03-02
•
Expires: 1981-04-27
Abstract
No abstract record available.
Inventors
- 👤 Robert L Lambert
- 👤 William R Mckeirnan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:01
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/22; B22F5/00; B22F5/006; B22F2998/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2280135A
Cited
US2956909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |