US3312955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for recording and retrieving digital information
Assignee: Eastman Kodak Co
•
Filing: 1963-09-03
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Granted: 1967-04-04
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Robert L Lamberts
- 👤 George C Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:30
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/005; G11C13/00; G11C13/04; G11C13/042; G11C13/048
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
AN INFORMATION RECORD FOR DIGITAL DATA IN THE FORM OF A DIGITAL NUMERAL HAVING A PLURALITY OF DISCRETE NUMERICAL BITS, EACH OF SAID BITS REPRESENTING A DISTINCT NUMERICAL VALUE, SAID RECORD COMPRISING A MEMBER HAVING FORMED THEREON, IN A DISCRETE AREA A MEMBER HAVING FORMED THEREON, IN A DISCRETE AREA THEREOF, A COMPOSITE DIFFRACTING GRATING CORRESPONDING SAID COMPOSITE GRATING COMPRISING A PLURALITY OF COMPONENT GRATINGS SUPERIMPOSED UPON ONE ANOTHER, AND EACH OF SAID COMPONENT GRATINGS EXTENDING SUBSTANTIALLY THROUGHOUT SAID DISCRETE AREA AND HAVING A
References Cited (Backward Citations)
US2813146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |