Patent US3263223A successfully refreshed from Google Patents.
US3263223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gap scatter correction apparatus
Assignee: Potter Instrument Co Inc
•
Filing: 1961-10-31
•
Granted: 1966-07-26
•
Expires: 1981-10-31
Abstract
No abstract record available.
Inventors
- 👤 George E Zenzefilis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:31
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A MAGNETIC TAPE INFORMATION STORAGE SYSTEM COMPRISING HEAD MEANS ADAPTED FOR A TRANSFER OF INFORMATION-REPRESENTING PULSES BETWEEN SAID HEAD MEANS AND A PLURALITY OF TRACKS ON A MAGNETIC TAPE WHEN IN JUXTAPOSITION THEREWITH, MAGNETIC PULSE-SENSING MEANS ON SAID HEAD MEANS TO DETECT AN INFORMATION-REPRESENTING MAGNETIC PULSE IN PREDETERMINED TRACKS OF A MULTI-TRACK MAGNETIC TAPE, A PLURALITY OF MONOSTABLE MULTIVIBRATOR CIRCUITS EQUAL TO THE NUMBER OF TRACKS AND EACH CIRCUIT
Claim 2
Dependent Claim
69 words
A MAGNETIC TAPE INFORMATION STORAGE SYSTEM COMPRISING HEAD MEANS ADAPTED FOR A TRANSFER OF INFORMATION-REPRESENTING PULSES BETWEEN SAID HEAD MEANS AND A PLURALITY OF TRACKS ON A MAGNETIC TAPE WHEN IN JUXTAPOSITION THEREWITH, MAGNETIC PULSE-SENSING MEANS ON SAID HEAD MEANS TO DETECT AN INFORMATION-REPRESENTING MAGNETIC PULSE IN PREDETERMINED TRACKS OF A MULTI-TRACK MAGNETIC TAPE, A PLURALITY OF MONOSTABLE MULTIVIBRATOR CIRCUITS EQUAL TO THE NUMBER OF TRACKS AND EACH CIRCUIT
References Cited (Backward Citations)
US2641717A
Cited
US2793344A
Cited
US2828478A
Cited
US2937239A
Cited
US2948884A
Cited
US2906874A
Cited
US2975300A
Cited
US3076183A
Cited
US3103000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |