US3212412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making aperture cards
Assignee: Langan Aperture Cards Inc
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Filing: 1963-04-26
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Granted: 1965-10-19
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 John F Langan
- 👤 Jr Lorimer Clayton
- 👤 Jr Grant E Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:07
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/02; G06K19/022; B; B42; B42F; B42F5/00; G03; G03B; G03B21/00; G03B21/54; G03B21/64; Y; Y10; Y10S; Y10S493/00; Y10S493/944; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF MAKING RECORD CARDS OF FIBROUS MATERIAL ADAPTED TO BE APERTURED AT PREDETERMINED LOCATIONS FOR PROJECTABLY MOUNTING SECTIONS OF MICROFILM AND LIKE PROJECTABLE TRANSPARENCIES, COMPRISING THE STEPS OF EMBOSSING THE CARD BY INDICATING ONE SIDE THEREOF TO FORM A NARROW ELONGATED TRENCH-LIKE AREA WHICH EXTENDS AROUND THE OUTLINE OF AN APERTURE TO BE FORMED, THEREBY FORMING A CORRESPONDING PROJECTING AREA ON THE OTHER SIDE OF THE CARD, AND THEN SUPPORTING SAID INDENTED AREA WHILE REMOVING THE PROJECTING MATERIAL FROM SAID OTHER SIDE OF SAID CARD TO A PREDETERMINED THICKNESS OVER SAID SUPPORTED AREA, THE REMAINING CARD AREA BEING UNSUPPORTED OUTSIDE SAID INDENTED AREA AND BEING DEPRESSIBLE BELOW THE LEVEL OF SAID SUPPORT WHEREBY REMOVAL OF CARD MATERIAL IS LIMITED SUBSTANTIALLY TO SAID SUPPORTED AREA.
Claim 2
Independent Claim
126 words
A METHOD OF MAKING RECORD CARDS OF FIBROUS MATERIAL ADAPTED TO BE APERTURED AT PREDETERMINED LOCATIONS FOR PROJECTABLY MOUNTING SECTIONS OF MICROFILM AND LIKE PROJECTABLE TRANSPARENCIES, COMPRISING THE STEPS OF EMBOSSING THE CARD BY INDICATING ONE SIDE THEREOF TO FORM A NARROW ELONGATED TRENCH-LIKE AREA WHICH EXTENDS AROUND THE OUTLINE OF AN APERTURE TO BE FORMED, THEREBY FORMING A CORRESPONDING PROJECTING AREA ON THE OTHER SIDE OF THE CARD, AND THEN SUPPORTING SAID INDENTED AREA WHILE REMOVING THE PROJECTING MATERIAL FROM SAID OTHER SIDE OF SAID CARD TO A PREDETERMINED THICKNESS OVER SAID SUPPORTED AREA, THE REMAINING CARD AREA BEING UNSUPPORTED OUTSIDE SAID INDENTED AREA AND BEING DEPRESSIBLE BELOW THE LEVEL OF SAID SUPPORT WHEREBY REMOVAL OF CARD MATERIAL IS LIMITED SUBSTANTIALLY TO SAID SUPPORTED AREA.
References Cited (Backward Citations)
US2667822A
Cited
US2977017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |