US2829049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the disintegration of cellulose-bearing material
Assignee: Hercules Powder Co
•
Filing: 1954-02-08
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Granted: 1958-04-01
•
Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Walter E Segl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:15
CPC Classifications
D; D21; D21C; D21C7/00; D21C7/06; D21B; D21B1/00; D21B1/04; D21B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE METHOD FOR FORMING AND DISINTEGRATING A PRESSURE-RESISTANT COMPACT OF CELLULOSIC MATERIAL WHICH COMPRISES CONTINUOUSLY FORMING A PRESSURE-RESISTANT COMPACT OF CELLULOSIC MATERIAL IN A COMPRESSION ZONE; CONTINUOUSLY EXTRUDING THE PRESSURE-RESISTANT COMPACT FROM THE COMPRESSION ZONE IN THE FORM OF AN ANNULAR BODY AGAINST A PRESSURE-ACTUATED RAM; AND SUCCESSIVELY DISINTEGRATING THE COMPACT SO FORMED BY CONTINUOUSLY EXTRUDING SAID COM-
Claim 2
Independent Claim
58 words
THE METHOD FOR FORMING AND DISINTEGRATING A PRESSURE-RESISTANT COMPACT OF CELLULOSIC MATERIAL WHICH COMPRISES CONTINUOUSLY FORMING A PRESSURE-RESISTANT COMPACT OF CELLULOSIC MATERIAL IN A COMPRESSION ZONE; CONTINUOUSLY EXTRUDING THE PRESSURE-RESISTANT COMPACT FROM THE COMPRESSION ZONE IN THE FORM OF AN ANNULAR BODY AGAINST A PRESSURE-ACTUATED RAM; AND SUCCESSIVELY DISINTEGRATING THE COMPACT SO FORMED BY CONTINUOUSLY EXTRUDING SAID COM-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |