Patent US2864928A successfully refreshed from Google Patents.
US2864928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive optical article
Assignee: Sierracin Corp
•
Filing: 1957-01-18
•
Granted: 1958-12-16
•
Expires: 1977-01-18
Abstract
No abstract record available.
Inventors
- 👤 Vance P Danford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:34
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B3/86; B; B29; B29D; B29D11/00; B29D11/0073; B29D11/0074; G; G02; G02C; G02C11/00; G02C11/08; H05B2203/00; H05B2203/013; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2097073A
Cited
US2267610A
Cited
US2254280A
Cited
US2507036A
Cited
US2490433A
Cited
US2552955A
Cited
US2644066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |