US3284722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light coupling device
Assignee: RCA Corp
•
Filing: 1963-03-22
•
Granted: 1966-11-08
•
Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Gray Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:12
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/02; H01S5/026; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; H10; H10F; H10F99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A LIGHT CONDUCTING MEDIUM COMPRISING A LAYER OF EVAPORABLE MATERIAL, THE COMPOSITION OF SAID LAYER VARYING FROM ONE SIDE TO THE OTHER WHEREBY THE INDEX OF REFRACTION OF SAID LAYER VARIES FROM SAID ONE SIDE TO SAID OTHER.
Claim 2
Dependent Claim
38 words
A LIGHT CONDUCTING MEDIUM COMPRISING A LAYER OF EVAPORABLE MATERIAL, THE COMPOSITION OF SAID LAYER VARYING FROM ONE SIDE TO THE OTHER WHEREBY THE INDEX OF REFRACTION OF SAID LAYER VARIES FROM SAID ONE SIDE TO SAID OTHER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |