US3440643A
Expired / Lapsed
US
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Assignee: Massachusetts Institute of Technology
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Filing: 1963-12-19
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Granted: 1969-04-22
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Teager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/046; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
APPARATUS FOR PROVIDING AN ANALOG TO DIGITAL CONVERTER COMPRISING: A PLURALITY OF CONDUCTORS SPACED FROM EACH OTHER AND SUBSTANTIALLY TRANSVERSE TO A COORDINATE DIRECTION, EACH CONDUCTOR HAVING A KNOWN POSITION IN SAID COORDINATE DIRECTION, MEANS FOR ELECTROMAGNETICALLY COUPLING TO EACH CONDUCTOR A KNOWN DIFFERENT SERIAL BINARY PULSE TRAIN OF ENERGY,
Claim 2
Dependent Claim
50 words
APPARATUS FOR PROVIDING AN ANALOG TO DIGITAL CONVERTER COMPRISING: A PLURALITY OF CONDUCTORS SPACED FROM EACH OTHER AND SUBSTANTIALLY TRANSVERSE TO A COORDINATE DIRECTION, EACH CONDUCTOR HAVING A KNOWN POSITION IN SAID COORDINATE DIRECTION, MEANS FOR ELECTROMAGNETICALLY COUPLING TO EACH CONDUCTOR A KNOWN DIFFERENT SERIAL BINARY PULSE TRAIN OF ENERGY,
References Cited (Backward Citations)
US3142055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |