Patent US3419299A successfully refreshed from Google Patents.
US3419299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiper arm
Assignee: Trico Products Corp
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Filing: 1955-02-14
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Granted: 1968-12-31
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 John R Oishei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:10
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3418; F; F16; F16B; F16B2200/00; F16B2200/40; F16B2200/403; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32368
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A WINDSHIELD WIPER CARRYING ARM FOR MOUNTING ON AN OSCILLATORY SHAFT HAVING A SERRATED SHOULDER AND AN ADJOINING THREADED END, SAID WIPER CARRYING ARM HAVING A MOUNTING HEAD FORMED WITH A SHAFT RECEIVING CHAMBER HAVING A SMOOTH CLUTCH WALL, AN EXPANSIBLE SERIES OF RIGID CLUTCH SHOES INDEPENDENTLY OPERATED AND HAVING SMOOTH ACTIVE FACES ENGAGING THE SMOOTH CLUTCH WALL, SHOE-CONFINING MEANS SUPPORTING THE SHOES WITHIN THE CHAMBER, SAID SHOES HAVING ONE END INTERLOCKINGLY CONNECTED TO THE SERRATED SHOULDER, AND A CLAMPING NUT ENGAGED WITH THE THREADED END OF THE SHAFT AND EFFECTIVELY ENGAGING THE OTHER ENDS OF THE CLUTCH SHOES TO THEREBY CAUSE SAID CLUTCH SHOES TO EXPAND AND EXERT A RADIAL FORCE AGAINST THE SMOOTH INNER WALL WHEN SAID CLAMPING NUT IS TIGHTENED.
Claim 2
Dependent Claim
123 words
A WINDSHIELD WIPER CARRYING ARM FOR MOUNTING ON AN OSCILLATORY SHAFT HAVING A SERRATED SHOULDER AND AN ADJOINING THREADED END, SAID WIPER CARRYING ARM HAVING A MOUNTING HEAD FORMED WITH A SHAFT RECEIVING CHAMBER HAVING A SMOOTH CLUTCH WALL, AN EXPANSIBLE SERIES OF RIGID CLUTCH SHOES INDEPENDENTLY OPERATED AND HAVING SMOOTH ACTIVE FACES ENGAGING THE SMOOTH CLUTCH WALL, SHOE-CONFINING MEANS SUPPORTING THE SHOES WITHIN THE CHAMBER, SAID SHOES HAVING ONE END INTERLOCKINGLY CONNECTED TO THE SERRATED SHOULDER, AND A CLAMPING NUT ENGAGED WITH THE THREADED END OF THE SHAFT AND EFFECTIVELY ENGAGING THE OTHER ENDS OF THE CLUTCH SHOES TO THEREBY CAUSE SAID CLUTCH SHOES TO EXPAND AND EXERT A RADIAL FORCE AGAINST THE SMOOTH INNER WALL WHEN SAID CLAMPING NUT IS TIGHTENED.
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |