Patent US3252045A successfully refreshed from Google Patents.
US3252045A
Expired / Lapsed
US
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Line generating means and method
Assignee: Marquardt Corp
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Filing: 1961-01-16
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Granted: 1966-05-17
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:50
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/94; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/69; H03K6/00; H03K6/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
IN A LINEAR CURRENT RAMP GENERATOR FOR GENERATING RAMP SIGNALS HAVING SELECTIVELY VARIABLE SLOPES AND FIXED TIME BASES, A SOURCE OF OPERATING POTENTIAL, A PLURALITY OF BRANCH CIRCUITS ADAPTED TO BE SELECTIVELY CONNECTED IN PARALLEL ACROSS SAID SOURCE OF OPERATING POTENTIAL AND THEREBY SELECT SAID SLOPES, EACH OF SAID BRANCH CIRCUITS COMPRISING AN INDUCTANCE, A RESISTANCE, AND A SWITCH CONNECTED IN SESERIES, SAID SWITCHES SELECTIVELY CLOSING SAID SERIES BRANCH CIRCUITS TO PLACE SAID CIRCUITS ACROSS SAID SOURCE OF OPERATING POTENTIAL, AND SAID SERIES INDUCTANCES LINEARIZING THE CURRENT FLOW THROUGH THE RESISTANCES WHICH ARE COUPLED ACROSS THE SOURCE OF OPERATING POTENTIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |