US3584313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melmet latching and unlatching mechanism
Assignee: RTX Corp
•
Filing: 1968-12-20
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Granted: 1971-06-15
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Expires: 1988-12-20
Abstract
Abstract A NECK-RING FOR USE WITH A HELMET OF THE PRESSURIZABLE TYPE, THE NECK-RING INCLUDING AN EXPANDABLE LATCHING RING HAVING A DEPENDING MEMBER ENGAGEABLE CONNECTED TO LATCHING AND UNLATCHING MEANS, MOVEMENT OF THE LATCHING RING BEING TRANSMITTED THERETO. ATTACHED TO THE NECK-RING IS RESILIENTLY MEANS FOR LOCKING THE DEPENDING MEMBER IN PLACE AND THEREAT REQUIRING TWO CONTRARY MOVEMENTS TO UNLOCK THE MECHANISM. D R A W I N G
Inventors
- 👤 Norman E Brown
- 👤 Ewald Kothe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:39
CPC Classifications
A; A62; A62B; A62B17/00; A62B17/001; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/606
Claims Analysis
Total Claims: 0
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |