US3248029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-sprocketed microfilm stepping device
Assignee: International Business Machines Corp
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Filing: 1963-12-20
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Granted: 1966-04-26
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 James B Money
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:06
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/18; G06K13/26; G06K13/30; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43; G03B21/44; G03B21/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A POSITIONING MACHANISM WHEREIN A MEMBER IS TO BE DRIVEN REPEATEDLY FROM AN OLD POSITION TO A NEW POSITION WHICH POSITIONS ARE SUBSTANTIALLY EQUIDISTANT, AND WHEREIN THE MEMBER AT EACH NEW POSITION IS TO BE INDEXED RELATIVE TO A REFERENCE STATION WITHIN AN ALLOWABLE POSITION ERROR, A DRIVE MECHANISM COMPRISING: MEANS FOR DRIVING SAID MEMBER THROUGH ONE CYCLE FOR SUBSTANTIALLY THE ENTIRE DISTANCE TO SAID NEW POSITION, MEANS FOR DRIVING SAID MEMBER THE REMAINDER OF THE DISTANCE TO SAID NEW POSITION IN STEPS EQUAL TO THE ALLOWABLE POSITIONAL ERROR, AND OPTO-ELECTRONIC MEANS FOR APPLYING A SIGNAL TO SAID DRIVING MEANS UPON THE ARRIVAL OF SAID MEMBER AT SAID NEW POSITION.
Claim 2
Dependent Claim
111 words
IN A POSITIONING MACHANISM WHEREIN A MEMBER IS TO BE DRIVEN REPEATEDLY FROM AN OLD POSITION TO A NEW POSITION WHICH POSITIONS ARE SUBSTANTIALLY EQUIDISTANT, AND WHEREIN THE MEMBER AT EACH NEW POSITION IS TO BE INDEXED RELATIVE TO A REFERENCE STATION WITHIN AN ALLOWABLE POSITION ERROR, A DRIVE MECHANISM COMPRISING: MEANS FOR DRIVING SAID MEMBER THROUGH ONE CYCLE FOR SUBSTANTIALLY THE ENTIRE DISTANCE TO SAID NEW POSITION, MEANS FOR DRIVING SAID MEMBER THE REMAINDER OF THE DISTANCE TO SAID NEW POSITION IN STEPS EQUAL TO THE ALLOWABLE POSITIONAL ERROR, AND OPTO-ELECTRONIC MEANS FOR APPLYING A SIGNAL TO SAID DRIVING MEANS UPON THE ARRIVAL OF SAID MEMBER AT SAID NEW POSITION.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |