US3028810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellent grain
Assignee: Standard Oil Co
•
Filing: 1952-05-17
•
Granted: 1962-04-10
•
Expires: 1972-05-17
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Proell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/28; C06B31/30; C06B23/00; C06B23/007; C06B45/00; C06B45/12; F; F02; F02K; F02K9/00; F02K9/08; F02K9/10; F02K9/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN ARTICLE OF MANUFACTURING THAT IS SUITABLE FOR THE GENERATION OF GAS AT ELEVATED PRESSURES, WHICH ARTICLE CONSISTS OF A BODY PORTION, WHICH BODY COMPRISES ESSENTIALLY AMMONIUM NITRATE BETWEEN ABOUT 71 AND 95 WEIGHT PERCENT, AN OXIDIZABLE MATERIAL BETWEEN ABOUT 5 AND 25 WEIGHT PERCENT, AND BETWEEN ABOUT 0.5 AND 4 WEIGHT PERCENT OF A COMBUSTION CATALYST SELECTED FROM THE GROUP CONSISTING OF IRON-IRON CYANIDE COMPLEXES, SOLUBLE PRUSSIAN BLUES, INSOLUBLE PRUSSIAN BLUES, AND AMMONIATED INSOLUBLE PRUSSIAN BLUES, AND AN OUTER SURFACE COATING PORTION OF A THICKNESS BETWEEN ABOUT 1 AND 20 MILLIMETERS, WHICH COATING COMPRISES ESSENTIALLY AMMONIUM NITRATE BETWEEN ABOUT 63 AND 89 WEIGHT PERCENT, AN OXIDIZABLE MATERIAL BETWEEN ABOUT 5 AND 25 WEIGHT PERCENT, AND BETWEEN ABOUT 6 AND 12 WEIGHT PERCENT OF A COMBUSTION CATALYST SELECTED FROM THE GROUP CONSISTING OF IRON-IRON CYANIDE COMPLEXES, SOLUBLE PRUSSIAN BLUES, INSOLUBLE PRUSSIAN BLUES, AND AMMONIATED INSOLUBLE PRUSSIAN BLUES.
Claim 2
Dependent Claim
147 words
AN ARTICLE OF MANUFACTURING THAT IS SUITABLE FOR THE GENERATION OF GAS AT ELEVATED PRESSURES, WHICH ARTICLE CONSISTS OF A BODY PORTION, WHICH BODY COMPRISES ESSENTIALLY AMMONIUM NITRATE BETWEEN ABOUT 71 AND 95 WEIGHT PERCENT, AN OXIDIZABLE MATERIAL BETWEEN ABOUT 5 AND 25 WEIGHT PERCENT, AND BETWEEN ABOUT 0.5 AND 4 WEIGHT PERCENT OF A COMBUSTION CATALYST SELECTED FROM THE GROUP CONSISTING OF IRON-IRON CYANIDE COMPLEXES, SOLUBLE PRUSSIAN BLUES, INSOLUBLE PRUSSIAN BLUES, AND AMMONIATED INSOLUBLE PRUSSIAN BLUES, AND AN OUTER SURFACE COATING PORTION OF A THICKNESS BETWEEN ABOUT 1 AND 20 MILLIMETERS, WHICH COATING COMPRISES ESSENTIALLY AMMONIUM NITRATE BETWEEN ABOUT 63 AND 89 WEIGHT PERCENT, AN OXIDIZABLE MATERIAL BETWEEN ABOUT 5 AND 25 WEIGHT PERCENT, AND BETWEEN ABOUT 6 AND 12 WEIGHT PERCENT OF A COMBUSTION CATALYST SELECTED FROM THE GROUP CONSISTING OF IRON-IRON CYANIDE COMPLEXES, SOLUBLE PRUSSIAN BLUES, INSOLUBLE PRUSSIAN BLUES, AND AMMONIATED INSOLUBLE PRUSSIAN BLUES.
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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |