Patent US3044982A successfully refreshed from Google Patents.
US3044982A
Expired / Lapsed
US
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Organopolysiloxanes and process for producing same
Assignee: Union Carbide Corp
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Filing: 1957-11-12
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Granted: 1962-07-17
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Victor B Jex
- 👤 Donald L Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR PREPARING AMINOALKYLPOLYSILOXANES CONSISTING ESSENTIALLY OF UNITS HAVING THE AVERAGE FORMULA:
Claim 2
Dependent Claim
13 words
A PROCESS FOR PREPARING AMINOALKYLPOLYSILOXANES CONSISTING ESSENTIALLY OF UNITS HAVING THE AVERAGE FORMULA:
References Cited (Backward Citations)
US2738357A
Cited
US2754311A
Cited
US2755269A
Cited
US2762823A
Cited
US2832754A
Cited
US2881184A
Cited
US2921950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |