US3218608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record transmission system
Assignee: International Business Machines Corp
•
Filing: 1959-12-14
•
Granted: 1965-11-16
•
Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Barbeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:42
CPC Classifications
G; G06; G06K; G06K5/00; G06F; G06F11/00; G06F11/07; G06F11/08; G06F3/00; G06F3/06; H; H04; H04L; H04L1/00; H04L1/004
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
156 words
A MECHANISM FOR CHECKING FOR ERRORS IN MESSAGES IN A PAPER TAPE DATA TRANSMISSION SYSTEM COMPRISING: MEANS CONTROLLING A TAPE PUNCH IN TAPE COLUMN BIT CODE PUNCH CYCLES, CODE MEANS INDICATING THE BEGINNING AND END OF A MESSAGE IN SAID TAPE, MEANS COUNTING THE NUMBER OF LIKE CODE BITS AND THE NUMBER OF PUNCH CYCLES IN A MESSAGE, MEANS FOR ENTERING INTO SAID TAPE IN A COLUMN FOLLOWING AN END OF MESSAGE CODE A CHECK DIGIT CODE CORRESPONDING TO THE UNITS ORDER OF THE NUMBER OF LIKE BITS AND PUNCH CYCLES IN SAID MESSAGE, MEANS FOR READING SAID TAPE IN COLUMN CYCLES, MEANS RESPONSIVE TO THE OPERATION OF SAID TAPE READER FOR COUNTING THE COLUMN LIKE CODE BITS AND THE COLUMNS IN SAID MESSAGE, AND COMPARING MEANS FOR DETERMINING IN EACH MESSAGE, SAID CONMENT OR NON-AGREEMENT BETWEEN THE UNITS ORDER OF SAID READER CONTROLLED COUNTER AND SAID CHECK DIGIT CODE AT THE END OF SAID MESSAGE.
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) | 1968-11-15 | 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 |