US3289334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk type calculating and display device
Assignee: Individual
•
Filing: 1963-06-06
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Granted: 1966-12-06
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Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Forest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:56
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/02; G06G1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A DEVICE CONSISTING ESSENTIALLY OF A PLURALITY OF SUPERIMPOSED AND INTERLEAVED DISKS POSITIONED ON A COMMON AXIS, EACH OF SAID DISK BEING INDEPENDENTLY ROTATABLE WITH RESPECT TO THE REMAINING DISKS AND EACH SAID DISK HAVING A RADIAL SLIT EXTENDING FROM A POINT ON THE CIRCUMFERENCE TO THE CENTER THEREOF AND A LEAF PORTION INTEGRALLY AFFIXED TO SAID DISK ALONG THE ENTIRE LENGTH OF ONE EDGE OF SAID SLIT AND EXTENDING BELOW THE BODY OF SAID DISK A SUBSTANTIAL DISTANCE OUTWARDLY FROM SAID ONE EDGE OF THE SLIT, EACH SAID LEAF PORTION INTERCONNECTING ITS ASSOCIATED DISK WITH THE REMAINING DISKS AND LYING FLATLY AGAINST ONE OF THE LATTER, WHEREBY SAID DISKS ARE ADAPTED TO REMAIN IN SAID INTERLEAVED CONDITION WHEN 360 DEGREES OF SURFACE AREA OF ANY ONE THEREOF IS EXPOSED.
Claim 2
Independent Claim
130 words
A DEVICE CONSISTING ESSENTIALLY OF A PLURALITY OF SUPERIMPOSED AND INTERLEAVED DISKS POSITIONED ON A COMMON AXIS, EACH OF SAID DISK BEING INDEPENDENTLY ROTATABLE WITH RESPECT TO THE REMAINING DISKS AND EACH SAID DISK HAVING A RADIAL SLIT EXTENDING FROM A POINT ON THE CIRCUMFERENCE TO THE CENTER THEREOF AND A LEAF PORTION INTEGRALLY AFFIXED TO SAID DISK ALONG THE ENTIRE LENGTH OF ONE EDGE OF SAID SLIT AND EXTENDING BELOW THE BODY OF SAID DISK A SUBSTANTIAL DISTANCE OUTWARDLY FROM SAID ONE EDGE OF THE SLIT, EACH SAID LEAF PORTION INTERCONNECTING ITS ASSOCIATED DISK WITH THE REMAINING DISKS AND LYING FLATLY AGAINST ONE OF THE LATTER, WHEREBY SAID DISKS ARE ADAPTED TO REMAIN IN SAID INTERLEAVED CONDITION WHEN 360 DEGREES OF SURFACE AREA OF ANY ONE THEREOF IS EXPOSED.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |