Patent US3206872A successfully refreshed from Google Patents.
US3206872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Teaching aid
Assignee: Individual
•
Filing: 1963-01-28
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Granted: 1965-09-21
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Leslie J Nason
- 👤 Bailey P Diane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:28
CPC Classifications
G; G09; G09B; G09B3/00; G09B3/02; G09B3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A TEACHING AID COMPRISING A PACK OF SEPRATE CARDS, A PLURALITY OF SYMBOLS ON EACH OF SIAD CARDS, A BAND ENCIRCLING THE PACK OF CARDS AND ELASTICALLY GRIPPING CARDS, SAID BAND HAVING A LESSER WIDTH DIMENSION THAN THE LENGTH DIMENSION OF THE CARDS, SAID BAND COVERING AT LEAST ONE OF SAID SYMBOLS ON THE TOP CARD OF THE PACK, SAID BAND HAVING AN OPENING THEREIN TO EXPOSE A SIGN ON THE UPPERMOST OF SAID CARDS.
Claim 2
Dependent Claim
75 words
A TEACHING AID COMPRISING A PACK OF SEPRATE CARDS, A PLURALITY OF SYMBOLS ON EACH OF SIAD CARDS, A BAND ENCIRCLING THE PACK OF CARDS AND ELASTICALLY GRIPPING CARDS, SAID BAND HAVING A LESSER WIDTH DIMENSION THAN THE LENGTH DIMENSION OF THE CARDS, SAID BAND COVERING AT LEAST ONE OF SAID SYMBOLS ON THE TOP CARD OF THE PACK, SAID BAND HAVING AN OPENING THEREIN TO EXPOSE A SIGN ON THE UPPERMOST OF SAID CARDS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |