US3148201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluoroalkyl-substituted polysiloxanes
Assignee: EIDP Inc
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Filing: 1961-09-13
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Granted: 1964-09-08
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Expires: 1981-09-13
Abstract
No abstract record available.
Inventors
- 👤 John H Fassnacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST ONE POLYFLUOROALKYL-SUBSTITUTED LINEAR POLYSILOXANE CONSISTING OF A POLYMER CHAIN OF FROM 2 TO ABOUT 30 REPEATING UNITS EACH OF WHICH CONSISTS OF X GROUPS OF THE FORMULA
Claim 2
Dependent Claim
34 words
A COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST ONE POLYFLUOROALKYL-SUBSTITUTED LINEAR POLYSILOXANE CONSISTING OF A POLYMER CHAIN OF FROM 2 TO ABOUT 30 REPEATING UNITS EACH OF WHICH CONSISTS OF X GROUPS OF THE FORMULA
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |