US2771035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant
Assignee: Olin Corp
•
Filing: 1953-03-05
•
Granted: 1956-11-20
•
Expires: 1973-03-05
Abstract
No abstract record available.
Inventors
- 👤 John D Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:36
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0083
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
A NITROCELLULOSE BASE PROPELLENT POWDER GRAIN HAVING UP TO AS MUCH AS ABOUT 5 PERCENT POTASSIUM NITRATE IN DISCRETE, PARTICULATE CRYSTALS OF LESS THAN 30 MICRONS ALONG THEIR MAJOR AXIS AND BOUND TO THE SURFACE OF THE PROPELLENT GRAIN.
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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |