US3813458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Random orientation of staple in slurry-cast propellants
Assignee: Hercules LLC
•
Filing: 1968-06-05
•
Granted: 1974-05-28
•
Expires: 1988-06-05
Abstract
Abstract A METHOD FOR RANDOMLY ORIENTING METALLIC STAPLE IN SOLID PROPELLANTS PREPARED BY SLURRY CASTING IS PROVIDED. THE METALLIC STAPLE IS RANDOMIZED BY CASTING POWDER GRANULES WHICH FORM A PART OF THE SLURRY. THE CASTING POWDER GRANULES ARE ADDED IN A SUFFICIENT QUANTITY TO FORM INTERSTICES BETWEEN THE CASTING POWDER GRANULES. THE STAPLE IS TRAPPED IN THESE INTERSTICS DURING MIXING AND THEREBY RANDOMLY ORIENTED.
Inventors
- 👤 R Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:25
CPC Classifications
C; C06; C06B; C06B33/00; C06B33/08; C06B21/00; C06B21/0033; C06B21/0058; C06B45/00
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |