Patent US3620167A successfully refreshed from Google Patents.
US3620167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive cage for wing-stabilized lowcaliber shells
Assignee: Rheinmetall Industrie AG
•
Filing: 1969-05-26
•
Granted: 1971-11-16
•
Expires: 1989-05-26
Abstract
Abstract A WING-STABILIZED LOW-CALIBER SHELL, WHICH COMPRISES A SHELL BODY AND A DRIVE CAGE SURROUNDING IN THE CENTER RANGE THE SHELL BODY AND COMPRISING SEGMENTS INCLUDING LOOSELY JOINTED PARTS. AT LEAST ONE ANNULAR GUIDE BAND HOLDS TOGETHER THE SEGMENTS. A TAIL UNIT IS SECURED TO THE SHELL BODY AND THE DRIVE CAGE HAS AN END FACE OPPOSITE THE TAIL UNIT. A SEALING DISC IS DISPOSED AT THE END FACE TO THE DRIVE CAGE, AND THE GUIDE BAND IS DISPOSED ADJACENT THE SEALING DISC.
Inventors
- 👤 Rudolf Romer
- 👤 Jurgen Winkelmann
- 👤 Winfried Rossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:19
CPC Classifications
F; F42; F42B; F42B14/00; F42B14/06; F42B14/061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |