US2740704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing globular propellent powder grains
Assignee: Olin Corp
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Filing: 1950-03-09
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Granted: 1956-04-03
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Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Jr John J O'neill
- 👤 Gilbert R Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:15
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN THE MANUFACTURE OF GLOBULAR GRAIS OF PROPELLENT POWDER, THE PROCESS OF MAKING GRAINS HAVING A DIAMETER OF AT LEAST 0.025 INCH, COMPRISING, PRESIZING BODIES OF PROPELLENT POWDER BASE LACQUER AND SUSPENDING THE PRESIZE BODIES IN A NON-SOLVENT MEDIUM, THEN THEREAFTER, WHILE THE PRESIZED BODIES REMAIN SO SUSPENDED, REDUCING THE VISCOSITY OF THE LACQUER IN THE PRESIZED BODIES, MAINTAINING SUCH REDUCED VISCOSITY UNTIL THE BODIES APPROACH SPHERICAL SHAPE, AND THEN HARDENING THE SHAPED BODIES, ALL WHILE SUSPENSION IS MAINTAINED.
Claim 2
Dependent Claim
79 words
IN THE MANUFACTURE OF GLOBULAR GRAIS OF PROPELLENT POWDER, THE PROCESS OF MAKING GRAINS HAVING A DIAMETER OF AT LEAST 0.025 INCH, COMPRISING, PRESIZING BODIES OF PROPELLENT POWDER BASE LACQUER AND SUSPENDING THE PRESIZE BODIES IN A NON-SOLVENT MEDIUM, THEN THEREAFTER, WHILE THE PRESIZED BODIES REMAIN SO SUSPENDED, REDUCING THE VISCOSITY OF THE LACQUER IN THE PRESIZED BODIES, MAINTAINING SUCH REDUCED VISCOSITY UNTIL THE BODIES APPROACH SPHERICAL SHAPE, AND THEN HARDENING THE SHAPED BODIES, ALL WHILE SUSPENSION IS MAINTAINED.
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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |