US3146640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexing device
Assignee: Michigan Tool Co
•
Filing: 1961-08-02
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Granted: 1964-09-01
•
Expires: 1981-08-02
Abstract
No abstract record available.
Inventors
- 👤 Alexander D F Moncrieff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:32
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/08; B23Q16/10; B23Q16/102; Y; Y10; Y10T; Y10T74/00; Y10T74/14; Y10T74/1412; Y10T74/1476; Y10T74/1482; Y10T74/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN AN INDEXING DEVICE, AT LEAST THREE COAXIAL ELEMENTS, A FIRST OF SAID ELEMENTS HAVING A FIRST SET OF CIRCULARLY ARRANGED TEETH, A SECOND SET OF CIRCULARLY ARRANGED TEETH ON THE SECOND OF SAID ELEMENTS HAVING A NUMBER OF TEETH DIFFERENT THAN THE FIRST SET, A THIRD SET OF TEETH ON THE THIRD OF SAID ELEMENTS MATCHING AND ENGAGEABLE WITH SAID FIRST SET OF TEETH, A FOURTH SET OF TEETH ON SAID THIRD ELEMENT MATCHING AND ENGAGEABLE WITH SAID SECOND SET OF TEETH, MEANS FOR SELECTIVELY SEPARATING AND ENGAGING SAID FIRST AND THIRD SETS OF TEETH, MEANS FOR SELECTIVELY SEPARATING AND ENGAGING SAID SECOND AND FOURTH SETS OF TEETH, MEANS FOR ROTATING SAID THIRD ELEMENT WITH RESPECT TO SAID FIRST ELEMENT, AND MEANS FOR ROTATING SAID SECOND ELEMENT WITH RESPECT TO SAID FIRST AND THIRD ELEMENTS, BOTH OF SAID SELECTIVE MEANS INCLUDING MEANS FOR MAINTAINING THE
Claim 2
Dependent Claim
146 words
IN AN INDEXING DEVICE, AT LEAST THREE COAXIAL ELEMENTS, A FIRST OF SAID ELEMENTS HAVING A FIRST SET OF CIRCULARLY ARRANGED TEETH, A SECOND SET OF CIRCULARLY ARRANGED TEETH ON THE SECOND OF SAID ELEMENTS HAVING A NUMBER OF TEETH DIFFERENT THAN THE FIRST SET, A THIRD SET OF TEETH ON THE THIRD OF SAID ELEMENTS MATCHING AND ENGAGEABLE WITH SAID FIRST SET OF TEETH, A FOURTH SET OF TEETH ON SAID THIRD ELEMENT MATCHING AND ENGAGEABLE WITH SAID SECOND SET OF TEETH, MEANS FOR SELECTIVELY SEPARATING AND ENGAGING SAID FIRST AND THIRD SETS OF TEETH, MEANS FOR SELECTIVELY SEPARATING AND ENGAGING SAID SECOND AND FOURTH SETS OF TEETH, MEANS FOR ROTATING SAID THIRD ELEMENT WITH RESPECT TO SAID FIRST ELEMENT, AND MEANS FOR ROTATING SAID SECOND ELEMENT WITH RESPECT TO SAID FIRST AND THIRD ELEMENTS, BOTH OF SAID SELECTIVE MEANS INCLUDING MEANS FOR MAINTAINING THE
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US2233950A
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US2266283A
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US2940341A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |