US3126635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line terminating system
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:43
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A DRAFTING MACHINE HAVING A SOURCE OF CONTROL SIGNALS, A FUNCTION GENERATOR COUPLED TO SAID SOURCE OF CONTROL SIGNALS FOR DEVELOPING FIXED AMPLITUDE TIME VARYING SIGNALS, X AND Y PEN CONTROL CIRCUITS RESPONSIVE TO SAID SOURCE OF CONTROL SIGNALS AND TO SAID FUNCTION GENERATOR FOR CONTROLLING A PEN TO DRAW LINES, A LINE TERMINATING SYSTEM COMPRISING FIRST AND SECOND AMPLITUDE MODULATION MEANS COUPLED TO SAID FUNCTION GENERATOR AND TO SAID SOURCE OF CONTROL SIGNALS, SUMMING MEANS COUPLED TO SAID FIRST AND SECOND AMPLITUDE MODULATION MEANS FOR PROVIDING A TIME VARYING SIGNAL CHANGING FROM A PREDETERMINED POLARITY TO THE OTHER POLARITY WHEN A DESIRED LENGTH OF LINE IS DRAWN AS DETERMINED BY SAID SOURCE OF CONTROL SIGNALS, AND PEN CONTROL MEANS COUPLED TO SAID PEN AND TO SAID SUMMING MEANS FOR HOLDING SAID PEN ON THE DRAWING
Claim 2
Dependent Claim
137 words
IN A DRAFTING MACHINE HAVING A SOURCE OF CONTROL SIGNALS, A FUNCTION GENERATOR COUPLED TO SAID SOURCE OF CONTROL SIGNALS FOR DEVELOPING FIXED AMPLITUDE TIME VARYING SIGNALS, X AND Y PEN CONTROL CIRCUITS RESPONSIVE TO SAID SOURCE OF CONTROL SIGNALS AND TO SAID FUNCTION GENERATOR FOR CONTROLLING A PEN TO DRAW LINES, A LINE TERMINATING SYSTEM COMPRISING FIRST AND SECOND AMPLITUDE MODULATION MEANS COUPLED TO SAID FUNCTION GENERATOR AND TO SAID SOURCE OF CONTROL SIGNALS, SUMMING MEANS COUPLED TO SAID FIRST AND SECOND AMPLITUDE MODULATION MEANS FOR PROVIDING A TIME VARYING SIGNAL CHANGING FROM A PREDETERMINED POLARITY TO THE OTHER POLARITY WHEN A DESIRED LENGTH OF LINE IS DRAWN AS DETERMINED BY SAID SOURCE OF CONTROL SIGNALS, AND PEN CONTROL MEANS COUPLED TO SAID PEN AND TO SAID SUMMING MEANS FOR HOLDING SAID PEN ON THE DRAWING
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |