US3386787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Macroscopic optical waveguides
Assignee: Hazeltine Research Inc
•
Filing: 1963-10-25
•
Granted: 1968-06-04
•
Expires: 1983-10-25
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:19
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A MACROSCOPIC OPTICAL WAVEGUIDE FOR PROPAGATING PREDETERMINED MODES IN A BAND OF OPTICAL FREQUENCIES HAVING A MAXIMUM WAVELENGTH $C COMPRISING: A FIRST HORIZONTAL PLANAR SURFACE MAINTAINED AT A FIRST TEMPERATURE; A SECOND CONDUCTIVE PLANAR SURFACE ARRANGED IN SPACED PARALLEL RELATION A DISTANCE GREAT THAN D BELOW SAID THAN SAID FIRST TEMPERATURE; AND A GAS MAINTAINED BETWEEN SAID SURFACES; THE WAVEGUIDE BEING SO CONSTRUCTED AND ARRANGED THAT
Claim 2
Dependent Claim
66 words
A MACROSCOPIC OPTICAL WAVEGUIDE FOR PROPAGATING PREDETERMINED MODES IN A BAND OF OPTICAL FREQUENCIES HAVING A MAXIMUM WAVELENGTH $C COMPRISING: A FIRST HORIZONTAL PLANAR SURFACE MAINTAINED AT A FIRST TEMPERATURE; A SECOND CONDUCTIVE PLANAR SURFACE ARRANGED IN SPACED PARALLEL RELATION A DISTANCE GREAT THAN D BELOW SAID THAN SAID FIRST TEMPERATURE; AND A GAS MAINTAINED BETWEEN SAID SURFACES; THE WAVEGUIDE BEING SO CONSTRUCTED AND ARRANGED THAT
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |