US3223756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smokeless powder manufacture
Assignee: Hercules Powder Co
•
Filing: 1957-12-20
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Granted: 1965-12-14
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Expires: 1977-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ellsworth S Goodyear
- 👤 Charles E Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:19
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0075; B; B01; B01J; B01J2/00; B01J2/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD FOR THE MANUFACTURE OF PERFORATED SMOKELESS POWDER, WHICH COMPRISES EXTRUDING A WATER-MISCIBLE ALKOXY ALCOHOL SOLUTION OF NITROCELLULOSE OF FROM 11.3 TO 13.9 WEIGHT PERCENT N CONTENT AROUND AN ELONGATED OBSTRUCTION MEMBER IN FORM OF A PERFORATED STRAND INTO A BODY OF WATER CONTAINING AT THE POINTOF INITIAL CONTACT NOT MORE THAN 90 VOLUME PERCENT OF SAID ALCOHOL, AND PASSING WATER THROUGH THE SAID ELONGATED OBSTRUCTION MEMBER TOWARD AND INTO THE RESULTING PERFORATION IN DIRECT CONTACT WITH THE STRAND PORTIONS FORMING SAME, WHEREGY GELATION OF BOTH THE OUTER SURFACE OF THE STRAND AND THE INNER SURFACE FORMING SAID PERFOATION TAKES PLACE TO MAINTAIN SAID STRAND IN ITS PERFORATED FORM.
Claim 2
Independent Claim
110 words
A METHOD FOR THE MANUFACTURE OF PERFORATED SMOKELESS POWDER, WHICH COMPRISES EXTRUDING A WATER-MISCIBLE ALKOXY ALCOHOL SOLUTION OF NITROCELLULOSE OF FROM 11.3 TO 13.9 WEIGHT PERCENT N CONTENT AROUND AN ELONGATED OBSTRUCTION MEMBER IN FORM OF A PERFORATED STRAND INTO A BODY OF WATER CONTAINING AT THE POINTOF INITIAL CONTACT NOT MORE THAN 90 VOLUME PERCENT OF SAID ALCOHOL, AND PASSING WATER THROUGH THE SAID ELONGATED OBSTRUCTION MEMBER TOWARD AND INTO THE RESULTING PERFORATION IN DIRECT CONTACT WITH THE STRAND PORTIONS FORMING SAME, WHEREGY GELATION OF BOTH THE OUTER SURFACE OF THE STRAND AND THE INNER SURFACE FORMING SAID PERFOATION TAKES PLACE TO MAINTAIN SAID STRAND IN ITS PERFORATED FORM.
References Cited (Backward Citations)
US1370800A
Cited
US1590598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |