Patent US3309121A successfully refreshed from Google Patents.
US3309121A
Expired / Lapsed
US
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Keyway type connector
Assignee: Triodetic Structures Ltd
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Filing: 1964-08-07
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Granted: 1967-03-14
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Fentiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:10
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B1/1903; F; F16; F16B; F16B7/00; F16B7/04; E04B1/1909; E04B2001/1924; E04B2001/1927; E04B2001/193; E04B2001/1957; E04B2001/1966; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32606; Y10T403/32951; Y10T403/32959; Y10T403/34; Y10T403/347; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A CONNECTOR FOR SLIDINGLY RECEIVING THE FORMED ENDS OF DIVERGENT MEMBERS WITH ANGULARLY SPACED KEYWAY SLOTS OPEN TO AT LEAST ONE END, SAID CONNECTOR COMPRISING A PLURALITY OF DISKS ARRANGED IN A STACK, EACH OF SAID DISKS BEING PREFORMED WITH PERIPHERAL KEYWAY SLOTS CORRESPONDING ONE WITH THE OTHER, AND A TURNED TOOTH FORMED ON THE
Claim 2
Dependent Claim
55 words
A CONNECTOR FOR SLIDINGLY RECEIVING THE FORMED ENDS OF DIVERGENT MEMBERS WITH ANGULARLY SPACED KEYWAY SLOTS OPEN TO AT LEAST ONE END, SAID CONNECTOR COMPRISING A PLURALITY OF DISKS ARRANGED IN A STACK, EACH OF SAID DISKS BEING PREFORMED WITH PERIPHERAL KEYWAY SLOTS CORRESPONDING ONE WITH THE OTHER, AND A TURNED TOOTH FORMED ON THE
References Cited (Backward Citations)
US2931467A
Cited
US3060562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |