US3192843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical device
Assignee: SCM Corp
•
Filing: 1962-03-12
•
Granted: 1965-07-06
•
Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Narinder S Kapany
- 👤 David F Capellaro
- 👤 Ralph G Ostensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/04; G02B6/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3125013A
Cited
US1896246A
Cited
US2198115A
Cited
US2825260A
Cited
US2985784A
Cited
US3060805A
Cited
DE1092955B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |