US3209326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective alarm system for vehicles
Assignee: Individual
•
Filing: 1961-09-07
•
Granted: 1965-09-28
•
Expires: 1981-09-07
Abstract
No abstract record available.
Inventors
- 👤 Lawrence B Heiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:19
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; B; B60; B60R; B60R25/00; B60R25/10; B60R25/1004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A VEHICLE HAVING A VEHICLE STORAGE BATTERY WITH TWO TERMINALS, A PLURALITY OF SELECTIVELY OPERABLE LOAD MEANS CAUSING CURRENT DRAIN FROM SAID BATTERY AND THEREFORE REDUCING VOLTAGE AT THE BATTERY TERMINALS WHEN OPER-U ATED, SAID LOAD MEANS INCLUDING LIGHTS OPERABLE AS A CAR DOOR IS OPENED, THE IMPROVED ALARM SYSTEM COMPRISING IN COMBINATION, VOLTAGE SENSING MEANS INCLUDING A COUPLING CAPACITOR, SAID VOLTAGE SENSING MEANS CONNECTED DIRECTLY ACROSS THE TERMINALS OF THE BATTERY WITH THE CAPACITOR CONNECTING TO SENSE ONLY INSTANTANEOUS VOLTAGE DROPS THEREIN CAUSED BY INITIAL CURRENT PULSES DRAWN WHEN SAID LOAD MEANS IS FIRST OPERATED, WITHOUT ELECTRICALLY CONNECTING SAID VOLTAGE SENSING MEANS TO RECEIVE CURRENT PASSING THROUGH SAID LOAD MEANS, AND ALARM CIRCUIT MEANS CONNECTED TO THE VOLTAGE SENSING MEANS OPERABLE UPON OCCURRENCE OF A INSTANTANEOUS VOLTAGE DROP IN SAID BATTERY.
Claim 2
Dependent Claim
133 words
IN A VEHICLE HAVING A VEHICLE STORAGE BATTERY WITH TWO TERMINALS, A PLURALITY OF SELECTIVELY OPERABLE LOAD MEANS CAUSING CURRENT DRAIN FROM SAID BATTERY AND THEREFORE REDUCING VOLTAGE AT THE BATTERY TERMINALS WHEN OPER-U ATED, SAID LOAD MEANS INCLUDING LIGHTS OPERABLE AS A CAR DOOR IS OPENED, THE IMPROVED ALARM SYSTEM COMPRISING IN COMBINATION, VOLTAGE SENSING MEANS INCLUDING A COUPLING CAPACITOR, SAID VOLTAGE SENSING MEANS CONNECTED DIRECTLY ACROSS THE TERMINALS OF THE BATTERY WITH THE CAPACITOR CONNECTING TO SENSE ONLY INSTANTANEOUS VOLTAGE DROPS THEREIN CAUSED BY INITIAL CURRENT PULSES DRAWN WHEN SAID LOAD MEANS IS FIRST OPERATED, WITHOUT ELECTRICALLY CONNECTING SAID VOLTAGE SENSING MEANS TO RECEIVE CURRENT PASSING THROUGH SAID LOAD MEANS, AND ALARM CIRCUIT MEANS CONNECTED TO THE VOLTAGE SENSING MEANS OPERABLE UPON OCCURRENCE OF A INSTANTANEOUS VOLTAGE DROP IN SAID BATTERY.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |