Patent US3374711A successfully refreshed from Google Patents.
US3374711A
Expired / Lapsed
US
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Power drawbar
Assignee: Pratt and Whitney Co Inc
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Filing: 1966-02-24
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Granted: 1968-03-26
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Expires: 1986-02-24
Abstract
No abstract record available.
Inventors
- 👤 Alan J Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:15
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/26; B23B31/261; B23B31/266; Y; Y10; Y10T; Y10T408/00; Y10T408/94; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309408; Y10T409/309464
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A POWER DRAWBAR APPARATUS, COMPRISING A TORQUE TUBE HAVING A BORE THEREIN WITH A WAY FORMED WITHIN THE BORE, A DRAWBAR HAVING A PORTION THEREOF SLIDABLY MOUNTED IN THE BORE OF THE TORQUE TUBE, SAID DRAWBAR HAVING A SPLINE MOUNTED FOR SLIDABLE AXIS MOVEMENT IN SAID WAY, AND SAID DRAWBAR HAVING MEANS THEREON AT ONE END THEREOF FOR ENGAGING A TOOL.
Claim 2
Dependent Claim
61 words
A POWER DRAWBAR APPARATUS, COMPRISING A TORQUE TUBE HAVING A BORE THEREIN WITH A WAY FORMED WITHIN THE BORE, A DRAWBAR HAVING A PORTION THEREOF SLIDABLY MOUNTED IN THE BORE OF THE TORQUE TUBE, SAID DRAWBAR HAVING A SPLINE MOUNTED FOR SLIDABLE AXIS MOVEMENT IN SAID WAY, AND SAID DRAWBAR HAVING MEANS THEREON AT ONE END THEREOF FOR ENGAGING A TOOL.
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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |