US3218647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System, apparatus and method for recording and sensing
Assignee: Berkeley Instruments
•
Filing: 1959-06-10
•
Granted: 1965-11-16
•
Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Fenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:38
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/02; G06K1/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
IN A SYSTEM FOR RECORDING INFORMATION IN BIT FROM IN MULTIPLE CHANNELS ON A SHEET MATERIAL CONTAINING CELLULOSE, A PULSE GENERATOR FOR GENERATING FOR EACH INFORMATION BIT A PULSE OF PREDETERMINED TIME DURATION WHICH HAS A VOLTAGE GREATER THAN THE DIELECTRIC STRENGTH OF THE MATERIAL, A PLURALITY OF BINARY CONTACTS CONNECTED TO SAID PULSE GENERATOR AND MEANS FOR POSITIONING SAID BINARY CONTACTS IN A PREDETERMINED MANNER, CONTACT MEANS FOR SENSING THE BINARY CONTACTS, A PLURALITY OF ELECTRODES
References Cited (Backward Citations)
CA853069A
Cited
US1097131A
Cited
US1549473A
Cited
US1805195A
Cited
US2688739A
Cited
US2560247A
Cited
US2678373A
Cited
US2647033A
Cited
US2784389A
Cited
US2915710A
Cited
US2909768A
Cited
US2899676A
Cited
US2924786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |