US3198645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finely divided nitrocellulose particles and manufacture and use thereof
Assignee: Hercules Powder Co
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Filing: 1962-08-30
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Granted: 1965-08-03
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Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Plunguian Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:00
CPC Classifications
C; C08; C08B; C08B5/00; C08B5/02; C08B5/04; C08L; C08L1/00; C08L1/08; C08L1/16; C08L1/18; C09; C09D; C09D101/00; C09D101/08; C09D101/16; C09D101/18; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/34; D21H19/36; D21H19/44; D21H19/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A COMPOSITION OF MATTER COMPRISING A SMOOTH, FLUID, HOMOGENEOUS DISPERSION OF TINY IRREGULAR FRAGMENTS OF NITROCELLULOSE FIBERS IN WATER CONTAINING FROM ABOUT 0.5% TO ABOUT 2% BY WEIGHT, BASED ON SAID NITROCELLULOSE, OF A HYDROPHILIC PROTECTIVE COLLOID, A SUBSTANTIAL MAJORITY OF SAID FRAGMENTS HAVING A MAXIMUM DIMENSION OF ABOUT 2 MICRONS, THE REMAINDER OF SAID FRAGMENTS BEING TINY, IRREGULAR, NEEDLE-LIKE FRAGMENTS LESS THAN 3 MICRONS IN TWO DIMENSIONS BUT GREATER THAN 3 MICRONS IN LENGTH AND TINY IRREGULAR PLATELETS LESS THAN 3 MICRONS IN THICKNESS BUT MORE THAN 3 MICRONS IN DIAMETER, SAID NITROCELLULOSE FIBER BEING NITRATED NATURAL CELLULOSE FIBERS.
Claim 2
Dependent Claim
100 words
A COMPOSITION OF MATTER COMPRISING A SMOOTH, FLUID, HOMOGENEOUS DISPERSION OF TINY IRREGULAR FRAGMENTS OF NITROCELLULOSE FIBERS IN WATER CONTAINING FROM ABOUT 0.5% TO ABOUT 2% BY WEIGHT, BASED ON SAID NITROCELLULOSE, OF A HYDROPHILIC PROTECTIVE COLLOID, A SUBSTANTIAL MAJORITY OF SAID FRAGMENTS HAVING A MAXIMUM DIMENSION OF ABOUT 2 MICRONS, THE REMAINDER OF SAID FRAGMENTS BEING TINY, IRREGULAR, NEEDLE-LIKE FRAGMENTS LESS THAN 3 MICRONS IN TWO DIMENSIONS BUT GREATER THAN 3 MICRONS IN LENGTH AND TINY IRREGULAR PLATELETS LESS THAN 3 MICRONS IN THICKNESS BUT MORE THAN 3 MICRONS IN DIAMETER, SAID NITROCELLULOSE FIBER BEING NITRATED NATURAL CELLULOSE FIBERS.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |