US3205286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smokeless powder manufacture
Assignee: Individual
•
Filing: 1946-06-08
•
Granted: 1965-09-07
•
Expires: 1966-06-08
Abstract
No abstract record available.
Inventors
- 👤 Donald H Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:08
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
IN THE MANUFACTURE OF CAST SMOKELESS POWDER PROPELLANTS, THE IMPROVEMENT COMPRISING INTRODUCING SMOKELESS POWDER GRANULES INTO A CONTAINER, PLACING PRESSURE ON THE POWDER GRANULES IN THE CONTAINER, AND ADMITTING NONVOLATILE PLASTICIZERS TO THE CONTAINER THROUGH THE LOWER PORTION THEREOF.
Claim 2
Dependent Claim
39 words
IN THE MANUFACTURE OF CAST SMOKELESS POWDER PROPELLANTS, THE IMPROVEMENT COMPRISING INTRODUCING SMOKELESS POWDER GRANULES INTO A CONTAINER, PLACING PRESSURE ON THE POWDER GRANULES IN THE CONTAINER, AND ADMITTING NONVOLATILE PLASTICIZERS TO THE CONTAINER THROUGH THE LOWER PORTION THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |