US3142580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing regenerated cellulose particles with encapsulated opacifying or colored bodies
Assignee: Thatcher Glass Manufacturing Co Inc
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Filing: 1960-07-19
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Granted: 1964-07-28
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Expires: 1980-07-19
Abstract
No abstract record available.
Inventors
- 👤 George H Holoubek
- 👤 Harms Harland
- 👤 Kenneth E Glidden
- 👤 Smith Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:04
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/685; B29C70/58; B29C70/585; B32; B32B; B32B27/00; B29K; B29K2001/00; B29K2705/00; B29K2705/02; B29K2995/00; B29K2995/0018; B29K2995/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS FOR PRODUCING AN ATTRACTIVE GEL REGENERATED CELLULOSE ARTICLE WHICH COMPRISES APPLYING ON A SIDE OF GEL REGENERATED CELLULOSE PELLICLE FINELY-DIVIDED, OPAQUE PARTICLES, COVERING THE AREA OF SAID PELLICLE ON WHICH SAID PARTICLES ARE APPLIED WITH A VISCOSE FILM AND COVERING SAID PARTICLE WITH SAID VISCOSE FILM, AND THEN REGENERATING SAID VISCOSE FILM COVERING SAID PARTICLES IN AN ACID BATH TO THEREBY ENCAPSULATE SAID PARTICLES ON SAID PELLICLE UNDER THE REGENERATED VISCOSE FILM.
Claim 2
Dependent Claim
74 words
A PROCESS FOR PRODUCING AN ATTRACTIVE GEL REGENERATED CELLULOSE ARTICLE WHICH COMPRISES APPLYING ON A SIDE OF GEL REGENERATED CELLULOSE PELLICLE FINELY-DIVIDED, OPAQUE PARTICLES, COVERING THE AREA OF SAID PELLICLE ON WHICH SAID PARTICLES ARE APPLIED WITH A VISCOSE FILM AND COVERING SAID PARTICLE WITH SAID VISCOSE FILM, AND THEN REGENERATING SAID VISCOSE FILM COVERING SAID PARTICLES IN AN ACID BATH TO THEREBY ENCAPSULATE SAID PARTICLES ON SAID PELLICLE UNDER THE REGENERATED VISCOSE FILM.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |