Patent US3028347A successfully refreshed from Google Patents.
US3028347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uhiiccl
Assignee: —
•
Filing: —
•
Granted: 1962-04-03
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Expires: 1979-04-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08L; C08L83/00; C08L83/04; C09; C09D; C09D183/00; C09D183/04; C08L2666/00; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
COMPOSITIONS SUITABLE FOR USE AS PROTECTIVE VARNISHES, WHICH COMPRISE (A) 30-60% BY WEIGHT OF AT LEAST ONE ORGANOPOLYSILOXANE RESIN HAVING A MEAN NUMERICAL RATIO OF HYDROCARBON GROUPS TO SILICON ATOMS OF 1.2-1.6 SAID HYDROCARBON GROUP BEING SELECTED FROM THE CLASS CONSISTING OF ALKYL GROUPS OF 1 TO 4 CARBON ATOMS AND PHENYL GROUP, AND CONTAINING AN AVERAGE OF 0.5-2.5% OF HYDROXYL GROUPS, RECKONED ON THE DRY RESIN, (B) 1-25% BY WEIGHT OF AT LEAST ONE SILICEOUS ESTER SELECTED FROM THE GROUP WHICH CONSISTS OF THE METHYL AND ETHYL ESTERS OF MONOMERIC AND POLYMERISED ORTHOSILICIC ACID, (C) 1-20% BY WEIGHT OF AT LEAST ONE ESTER SELECTED FROM THE GROUP WHICH CONSISTS OF THE ORGANIC SOLVENT-SOLUBLE ALKYL ESTERS OF TITANIC AND ZIRCONIC ACIDS IN WHICH THE ALKYL GROUP CONTAINS 2 TO 18 CARBON ATOMS AND ORGANIC SOLVENT-SOLUBLE CONDENSATION PRODUCTS OF THESE ESTERS WITH ACETIC ACID AND ACETIC ANHYDRIDE, (D) AT LEAST 15% OF A SOLVENT FOR ALL OF COMPONENTS (A), (B) AND (C) SELECTED FROM THE GROUPING CONSISTING OF MINERAL SPIRITS AND BENZENE HYDROCARBONS.
Claim 2
Dependent Claim
172 words
COMPOSITIONS SUITABLE FOR USE AS PROTECTIVE VARNISHES, WHICH COMPRISE (A) 30-60% BY WEIGHT OF AT LEAST ONE ORGANOPOLYSILOXANE RESIN HAVING A MEAN NUMERICAL RATIO OF HYDROCARBON GROUPS TO SILICON ATOMS OF 1.2-1.6 SAID HYDROCARBON GROUP BEING SELECTED FROM THE CLASS CONSISTING OF ALKYL GROUPS OF 1 TO 4 CARBON ATOMS AND PHENYL GROUP, AND CONTAINING AN AVERAGE OF 0.5-2.5% OF HYDROXYL GROUPS, RECKONED ON THE DRY RESIN, (B) 1-25% BY WEIGHT OF AT LEAST ONE SILICEOUS ESTER SELECTED FROM THE GROUP WHICH CONSISTS OF THE METHYL AND ETHYL ESTERS OF MONOMERIC AND POLYMERISED ORTHOSILICIC ACID, (C) 1-20% BY WEIGHT OF AT LEAST ONE ESTER SELECTED FROM THE GROUP WHICH CONSISTS OF THE ORGANIC SOLVENT-SOLUBLE ALKYL ESTERS OF TITANIC AND ZIRCONIC ACIDS IN WHICH THE ALKYL GROUP CONTAINS 2 TO 18 CARBON ATOMS AND ORGANIC SOLVENT-SOLUBLE CONDENSATION PRODUCTS OF THESE ESTERS WITH ACETIC ACID AND ACETIC ANHYDRIDE, (D) AT LEAST 15% OF A SOLVENT FOR ALL OF COMPONENTS (A), (B) AND (C) SELECTED FROM THE GROUPING CONSISTING OF MINERAL SPIRITS AND BENZENE HYDROCARBONS.
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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |