Patent US2853503A successfully refreshed from Google Patents.
US2853503A
Expired / Lapsed
US
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Polysiloxane compound
Assignee: Union Carbide Corp
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Filing: 1955-10-31
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Granted: 1958-09-23
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Expires: 1975-10-31
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
- 👤 Francis M O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:25
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/04; C08F30/08; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C08G; C08G77/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A CHEMICAL COMPOUND IN THE FORM OF A LINEAR SILOXANE POLYMER CONSISTING OF ONE ETHYL VINYL SILOXANE UNIT AND TWO TRIMETHYL SILOXANE UNITS.
Claim 2
Dependent Claim
23 words
A CHEMICAL COMPOUND IN THE FORM OF A LINEAR SILOXANE POLYMER CONSISTING OF ONE ETHYL VINYL SILOXANE UNIT AND TWO TRIMETHYL SILOXANE UNITS.
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |