Patent US2822356A successfully refreshed from Google Patents.
US2822356A
Expired / Lapsed
US
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Stripping synthetic polymer reaction masses
Assignee: Bridgestone Firestone Inc
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Filing: 1953-10-28
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Granted: 1958-02-04
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Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Crane Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:08
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/001; C08F6/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
PROCES OF STRIPPING UNREACTED MONOMERS FROM A POLYMERIZATION MASS SELECTED FROM THE GROUP CONSISTING OF AQUEOUS EMULSION AND SUSPENSION POLYMERIZATION MASSES WHICH COMPRISES MIXING A PERFLUORO ORGANIC COMPOUND HAVING A BOILING POINT IN THE RENGE 50*-200*C. WITH SAID MASS, AND SUBJECTING THE MIXTURE TO HEAT TO CAUSE BOILING THEREOF.
Claim 2
Dependent Claim
49 words
PROCES OF STRIPPING UNREACTED MONOMERS FROM A POLYMERIZATION MASS SELECTED FROM THE GROUP CONSISTING OF AQUEOUS EMULSION AND SUSPENSION POLYMERIZATION MASSES WHICH COMPRISES MIXING A PERFLUORO ORGANIC COMPOUND HAVING A BOILING POINT IN THE RENGE 50*-200*C. WITH SAID MASS, AND SUBJECTING THE MIXTURE TO HEAT TO CAUSE BOILING THEREOF.
References Cited (Backward Citations)
US2433060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |