US3250899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital navigation for computing latitude and longitude
Assignee: General Precision Inc
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Filing: 1963-01-04
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Granted: 1966-05-10
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Expires: 1983-01-04
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/544; G06F7/548
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A DIGITAL INTEGRATOR COMPRISING AN ACCUMULATOR OPERABLE (1) TO ALGEBRAICALLY ADD EACH APPLIED NUMBER TO THE CONTENTS THEREOF, (2) TO GENERATE AN OUTPUT SIGNAL OF A FIRST CHARACTERISTIC EACH TIME THE CAPACITY OF SAID ACCUMULATOR OVERFLOWS WITH POSITIVE NUMBERS, AND (3) TO GENERATE AN OUTPUT SIGNAL OF A SECOND CHARACTERISTIC EACH TIME SAID ACCUMULATOR OVERFLOWS WITH NEGATIVE NUMBERS, MEANS TO APPLY TO SAID ACCUMULATOR NUMBERS PROPORTIONAL TO SEQUENTIAL SAMPLES OF THE INTEGRAND, AND A COUNTER OPERABLE TO COUNT IN ONE DIRECTION IN RESPONSE TO EACH OUTPUT SIGNAL OF A FIRST CHARACTERISTIC PRODUCED BY SAID ACCUMULATOR AND OPERABLE TO COUNT IN THE OPPOSITE DIRECTION IN RESPONSE
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |