US3664693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Couplings for connecting two components
Assignee: ZF International UK Ltd
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Filing: 1970-01-14
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Granted: 1972-05-23
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Expires: 1990-01-14
Abstract
Abstract A COUPING FOR CONNECTING TWO COMPONENTS COMPRISING A SLEEVE CONNECTED TO ONE OF THE COMPONENT AND DEFINING A CAVITY FOR THE END OF THE OTHER COMPONENT, THE CAVITY HAVING A POURING HOLE THROUGH WHICH MOLTEN MATERIAL CAN BE POURED TO FILL THE CAVITY AND ALSO A KEYING OPENING IN SAID END OF THE COMPONENT.
Inventors
- 👤 Brian Pemberton Gyles Irons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; F; F04; F04B; F04B53/00; F04B53/14; F04B53/144; F16; F16B; F16B7/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49993; Y10T403/00; Y10T403/47; Y10T403/471; Y10T403/473; Y10T403/57; Y10T403/5761; Y10T403/5766
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |