Patent US3077969A successfully refreshed from Google Patents.
US3077969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening devices
Assignee: Chiswick Products Ltd
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Filing: 1961-02-02
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Granted: 1963-02-19
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Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Raffe Joseph Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:24
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/22; B; B65; B65G; B65G11/00; B65G11/18; B65G11/183; F16B; F16B7/00; F16B7/04; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7194
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A GRAVITY CHUTE COMPRISING A PLURALITY OF ELONGATED BENDABLE MEMBERS ARRANGED IN GENERALLY PARALLEL AND SPACED RELATIONSHIP TO ONE ANOTHER TO DEFINE A TRACKWAY OF UNIFORM CROSS-SECTION WITHIN WHICH ARTICLES CAN RUN, AND SUPPORTS FOR SAID MEMBERS SPACED ALONG THE LENGTH THEREOF, FASTENING DEVICES DETACHABLY CONNECTING SAID MEMBERS TO SAID SUPPORTS EACH SAID FASTENING DEVICE HAVING A GROOVE FORMED IN AND EXTENDING ACROSS AN END FACE THEREOF WHICH GROOVE IS SO SHAPED IN CROSS-SECTION AS TO EMBRACE ONE OF SAID MEMBERS WITH PART OF THE PERIPHERAL SURFACE OF THE LATTER EXTENDING PROUD OF THE SAID END FACE, SAID DEVICE BEING FORMED WITH A SCREW-THREAD AT A POSITION REMOTE FROM SAID END FACE AND SECURED THEREBY TO ONE OF SAID SUPPORTS TO HOLD SAID MEMBER FIRMLY IN POSITION.
Claim 2
Dependent Claim
127 words
A GRAVITY CHUTE COMPRISING A PLURALITY OF ELONGATED BENDABLE MEMBERS ARRANGED IN GENERALLY PARALLEL AND SPACED RELATIONSHIP TO ONE ANOTHER TO DEFINE A TRACKWAY OF UNIFORM CROSS-SECTION WITHIN WHICH ARTICLES CAN RUN, AND SUPPORTS FOR SAID MEMBERS SPACED ALONG THE LENGTH THEREOF, FASTENING DEVICES DETACHABLY CONNECTING SAID MEMBERS TO SAID SUPPORTS EACH SAID FASTENING DEVICE HAVING A GROOVE FORMED IN AND EXTENDING ACROSS AN END FACE THEREOF WHICH GROOVE IS SO SHAPED IN CROSS-SECTION AS TO EMBRACE ONE OF SAID MEMBERS WITH PART OF THE PERIPHERAL SURFACE OF THE LATTER EXTENDING PROUD OF THE SAID END FACE, SAID DEVICE BEING FORMED WITH A SCREW-THREAD AT A POSITION REMOTE FROM SAID END FACE AND SECURED THEREBY TO ONE OF SAID SUPPORTS TO HOLD SAID MEMBER FIRMLY IN POSITION.
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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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |