Patent US2849877A successfully refreshed from Google Patents.
US2849877A
Expired / Lapsed
US
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Apparatus for fatigue testing of elastomers
Assignee: Goodyear Tire and Rubber Co
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Filing: 1955-10-14
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Granted: 1958-09-02
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Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 Donald K Burgett
- 👤 Richard P Clifford
- 👤 Samuel D Gehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:26
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/32; G01N2203/00; G01N2203/02; G01N2203/022; G01N2203/0222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
AN APPARATUS FOR TESTING A SHEET SPECIMENT OF AN ELASTOMER COMPRISING A FIRST AND A SECOND SPECIMENGRIPPING MEANS IN SPACED OPPOSITELY-FIXED RELATIONSHIP ALONG A FIRST AXIS, A THIRD AND FOURTH SPECIMEN-GRIPPING MEANS IN SPACED OPPOSITELY-FIXED RELATIONSHIP ALONG A SECOND AXIS SUBSTANTIALLY NORMAL TO THE FIRST AXIS, SAID FIRST AND SECOND AXES BEING IN THE PLANE OF THE SHEET SPECIMEN, MEANS TO RECIPROCATINGLY DISPLACE IN CYCLIC MANNER THE FIRST AND SECOND GRIPPING MEANS LINEARLY TOWARD AND FROM EACH OTHER ALONG THE FIRST AXIS, MEANS TO RECIPRO-
Claim 2
Independent Claim
85 words
AN APPARATUS FOR TESTING A SHEET SPECIMENT OF AN ELASTOMER COMPRISING A FIRST AND A SECOND SPECIMENGRIPPING MEANS IN SPACED OPPOSITELY-FIXED RELATIONSHIP ALONG A FIRST AXIS, A THIRD AND FOURTH SPECIMEN-GRIPPING MEANS IN SPACED OPPOSITELY-FIXED RELATIONSHIP ALONG A SECOND AXIS SUBSTANTIALLY NORMAL TO THE FIRST AXIS, SAID FIRST AND SECOND AXES BEING IN THE PLANE OF THE SHEET SPECIMEN, MEANS TO RECIPROCATINGLY DISPLACE IN CYCLIC MANNER THE FIRST AND SECOND GRIPPING MEANS LINEARLY TOWARD AND FROM EACH OTHER ALONG THE FIRST AXIS, MEANS TO RECIPRO-
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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |