US3075304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational apparatus
Assignee: Individual
•
Filing: 1961-04-05
•
Granted: 1963-01-29
•
Expires: 1981-04-05
Abstract
No abstract record available.
Inventors
- 👤 Michael A Votolato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:57
CPC Classifications
G; G09; G09B; G09B17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
EDUCATIONAL APPARATUS COMPRISING A PLURALITY OF PIECE AND AT LEAST ONE MAGNETIC ELEMENT CARRIED BY EACH SAID PIECE, EACH PIECE BEING SHAPED TO FORM A CONSTITUENT PART OF A PLURALITY OF CHARACTERS AND SAID MAGNETIC ELEMENTS BEING SO DISPOSED IN SAID PIECES AS TO INHIBIT FORMATION OF IMPROPERLY SHAPED CHARACTERS.
Claim 2
Dependent Claim
50 words
EDUCATIONAL APPARATUS COMPRISING A PLURALITY OF PIECE AND AT LEAST ONE MAGNETIC ELEMENT CARRIED BY EACH SAID PIECE, EACH PIECE BEING SHAPED TO FORM A CONSTITUENT PART OF A PLURALITY OF CHARACTERS AND SAID MAGNETIC ELEMENTS BEING SO DISPOSED IN SAID PIECES AS TO INHIBIT FORMATION OF IMPROPERLY SHAPED CHARACTERS.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |