US3221304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic identification system employing a data bearing identification card
Assignee: Marquardt Corp
•
Filing: 1961-02-23
•
Granted: 1965-11-30
•
Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Oleg C Enikeieff
- 👤 William H West
- 👤 Dean C Dye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
G; G07; G07C; G07C11/00; G07C9/00; G07C9/20; G07C9/21; G07C9/22; G07C9/23; Y; Y10; Y10S; Y10S194/00; Y10S194/903
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
AN ELECTRONIC IDENTIFICATION SYSTEM EMPLOYING A DATA BEARING IDENTIFICATION CARD COMPRISING: MEANS FOR RECEIVING SAID CARD; MEANS FOR SENSING THE DATA ON SAID CARD; KEYBOARD MEANS FOR ACCEPTING A MANUALLY ENTERED IDENTIFICATION CODE; DATA SCRAMBLING MEANS CONNECTED TO SAID SENSING MEANS FOR MODIFYING THE DATA SENSED FROM SAID CARD IN ORDER TO AFFECT COINCIDENCE BETWEEN SAID SENSED DATA SAND SAID IDENTIFICATION CODE; MEANS FOR COMPARING SAID MANUALLY ENTERED IDENTIFICATION CODE WITH WITH MODIFIED DATA SENSED FROM SAID CARD; AND MEANS OPERABLE BY SAID MEANS WHEN SAID MODIFIED DATA COINCIDES WITH SAID IDENTIFICATION CODE TO CAUSE SAID RECEIVING MEANS TO RELEASE SAID RECEIVED CARD.
Claim 2
Dependent Claim
103 words
AN ELECTRONIC IDENTIFICATION SYSTEM EMPLOYING A DATA BEARING IDENTIFICATION CARD COMPRISING: MEANS FOR RECEIVING SAID CARD; MEANS FOR SENSING THE DATA ON SAID CARD; KEYBOARD MEANS FOR ACCEPTING A MANUALLY ENTERED IDENTIFICATION CODE; DATA SCRAMBLING MEANS CONNECTED TO SAID SENSING MEANS FOR MODIFYING THE DATA SENSED FROM SAID CARD IN ORDER TO AFFECT COINCIDENCE BETWEEN SAID SENSED DATA SAND SAID IDENTIFICATION CODE; MEANS FOR COMPARING SAID MANUALLY ENTERED IDENTIFICATION CODE WITH WITH MODIFIED DATA SENSED FROM SAID CARD; AND MEANS OPERABLE BY SAID MEANS WHEN SAID MODIFIED DATA COINCIDES WITH SAID IDENTIFICATION CODE TO CAUSE SAID RECEIVING MEANS TO RELEASE SAID RECEIVED CARD.
Claim 3
Dependent Claim
71 words
AN ELECTRONIC IDENTIFICATIN SYSTEM FOR CONTROLLING THE ADMITTANCE OF ENTRANTS THROUGH A PASSAGEWAY COMPRISING, BARRIER MEANS FOR CONTROLLING THE OPEN AND CLOSED CONDITION OF SAID PASSAGEWAY, MEANS FOR SELECTIVELY CONTROLLING SAID BARRIER MEANS TO PERMIT AN ENTRANT TO PROCEED THROUGH SAID PASSAGEWAY, SAID CONTROLLING MEANS COMPRISING MEANS FOR RECEIVING AN ENCODED IDENTIFICATION CARD CARRIERD BY SAID ENTRANT, KEYBOARD MEANS OPERABLE BY SAID ENTRANT TO PLACE A CODE IN SAID CONTROLLING MEANS,
Claim 4
Dependent Claim
71 words
AN ELECTRONIC IDENTIFICATIN SYSTEM FOR CONTROLLING THE ADMITTANCE OF ENTRANTS THROUGH A PASSAGEWAY COMPRISING, BARRIER MEANS FOR CONTROLLING THE OPEN AND CLOSED CONDITION OF SAID PASSAGEWAY, MEANS FOR SELECTIVELY CONTROLLING SAID BARRIER MEANS TO PERMIT AN ENTRANT TO PROCEED THROUGH SAID PASSAGEWAY, SAID CONTROLLING MEANS COMPRISING MEANS FOR RECEIVING AN ENCODED IDENTIFICATION CARD CARRIERD BY SAID ENTRANT, KEYBOARD MEANS OPERABLE BY SAID ENTRANT TO PLACE A CODE IN SAID CONTROLLING MEANS,
References Cited (Backward Citations)
US2315741A
Cited
US2754496A
Cited
US2995730A
Cited
US2714201A
Cited
US3015087A
Cited
US2842876A
Cited
US2914746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |