Patent US3249656A successfully refreshed from Google Patents.
US3249656A
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Sealant composition
Assignee: MATHEW L KALINOWSKI
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Filing: 1963-07-30
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Granted: 1966-05-03
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Lester W Kalinowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:26
CPC Classifications
C; C09; C09J; C09J4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A LIQUID SEALANT COMPOSITION WHICH IS STABLE FOR AN EXTENDED PERIOD OF TIME UNDER ROOM TEMPERATURE STORAGE CONDITIONS IN ISOLATION FROM CONTACT WITH METAL SURFACES AND COMPRISING A MIXTURE OF A MAJOR AMOUNT OF A LIQUID ACRYLIC ESTER SELECTED FROM THE CLASS CONSISTING OF DI-, TRIAND TETRA-ESTERS OF AN ACRYLIC ACID AND A POLYHYDRIC ALCOHOL, A MINOR AMOUNT OF A LOW MOLECULAR WEIGHT PREPOLYMER OF AN ESTER OF A LOW MOLECULAR WEIGHT ALCOHOL HAVING A TERMINAL VINYL GROUP AND AROMATIC POLYCARBOXYLIC ACID IN SOLUTION IN SAID ACRYLIC ESTER AND, AS THE SOLE OPERATING INITIATOR FOR INITIATING COPOLYMERIZATION OF SAID ACRYLIC ESTER AND PREPOLYMER, AN ORGANIC AMIDE OF THE FORMULA
Claim 2
Dependent Claim
109 words
A LIQUID SEALANT COMPOSITION WHICH IS STABLE FOR AN EXTENDED PERIOD OF TIME UNDER ROOM TEMPERATURE STORAGE CONDITIONS IN ISOLATION FROM CONTACT WITH METAL SURFACES AND COMPRISING A MIXTURE OF A MAJOR AMOUNT OF A LIQUID ACRYLIC ESTER SELECTED FROM THE CLASS CONSISTING OF DI-, TRIAND TETRA-ESTERS OF AN ACRYLIC ACID AND A POLYHYDRIC ALCOHOL, A MINOR AMOUNT OF A LOW MOLECULAR WEIGHT PREPOLYMER OF AN ESTER OF A LOW MOLECULAR WEIGHT ALCOHOL HAVING A TERMINAL VINYL GROUP AND AROMATIC POLYCARBOXYLIC ACID IN SOLUTION IN SAID ACRYLIC ESTER AND, AS THE SOLE OPERATING INITIATOR FOR INITIATING COPOLYMERIZATION OF SAID ACRYLIC ESTER AND PREPOLYMER, AN ORGANIC AMIDE OF THE FORMULA
References Cited (Backward Citations)
CA458647A
Cited
US2435769A
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US2558139A
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US2628178A
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US2610168A
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US2877205A
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US2895950A
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FR1258408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |