US3364495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for interrecord gap size control
Assignee: International Business Machines Corp
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Filing: 1963-06-28
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Granted: 1968-01-16
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Robert V Mcfadden
- 👤 Charles P Rauf
- 👤 Gilbert G Unger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:35
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/12; G11B20/1201; G11B20/1202; G11B20/1205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
MEANS FOR CONTROLLING THE WRITING OF A NEXT TAPE BLOCK OF DIGITAL INFORMATION IN RELATION TO A PRIOR ADJACENT TAPE BLOCK ON MAGNETIC TAPE, COMPRISING MEANS FOR PROVIDING A SHORT-WRITE TIME DELAY AND A LONG-WRITE TIME DELAY FOR USE WHILE MOVING SAID TAPE PRIOR TO WRITING THE NEXT TAPE BLOCK, MEANS FOR MEASURING AN INTERVAL OF TIME RELATED TO THE END OF WRITING SAID PRIOR ADJACENT TAPE BLOCK, MEANS FOR SIGNALING THE WRITING OF THE NEXT TAPE BLOCK, MEANS FOR ACTUATING SAID SHORT-WRITE DELAY IN RESPONSE TO THE NEXT TAPE WRITE SIGNAL OCCURRING WITHIN SAID INTERVAL OF TIME, AND MEANS FOR ACTUATING SAID LONG WRITE DELAY IN RESPONSE TO THE NEXT TAPE WRITE SIGNAL OCCURING AFTER SAID MEASURED INTERVAL OF TIME.
Claim 2
Dependent Claim
121 words
MEANS FOR CONTROLLING THE WRITING OF A NEXT TAPE BLOCK OF DIGITAL INFORMATION IN RELATION TO A PRIOR ADJACENT TAPE BLOCK ON MAGNETIC TAPE, COMPRISING MEANS FOR PROVIDING A SHORT-WRITE TIME DELAY AND A LONG-WRITE TIME DELAY FOR USE WHILE MOVING SAID TAPE PRIOR TO WRITING THE NEXT TAPE BLOCK, MEANS FOR MEASURING AN INTERVAL OF TIME RELATED TO THE END OF WRITING SAID PRIOR ADJACENT TAPE BLOCK, MEANS FOR SIGNALING THE WRITING OF THE NEXT TAPE BLOCK, MEANS FOR ACTUATING SAID SHORT-WRITE DELAY IN RESPONSE TO THE NEXT TAPE WRITE SIGNAL OCCURRING WITHIN SAID INTERVAL OF TIME, AND MEANS FOR ACTUATING SAID LONG WRITE DELAY IN RESPONSE TO THE NEXT TAPE WRITE SIGNAL OCCURING AFTER SAID MEASURED INTERVAL OF TIME.
References Cited (Backward Citations)
US2907989A
Cited
US3193801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |