US2843556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhancing pot life of polymerizable coating compositions
Assignee: PPG Industries Inc
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Filing: 1955-05-09
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Granted: 1958-07-15
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Robert W Moorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:41
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/06; C08; C08K; C08K3/00; C08K3/18; C08K3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A RESINOUS COMPOSITION COMPRISING A MIXTURE OF (A) A POLYESTER OF A DIHYDRIC ALCOHOL AND AN ALPHA-BETA ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID, (B) A MONOMER CONTAINING A CH2=C< GROUP, THE MONOMER BEING PRESENT IN AN AMOUNT OF ABOUT 5 PERCENT TO 50 PERCENT BY WEIGHT BASED UPON THE POLYESTER-MONOMER MIXTURE AND (C) ABOUT 0.5 PERCENT TO 12 PERCENT BY WEIGHT OF WATER BASED UPON THE TOTAL WEIGHT OF SAID INTERPOLYMERIZABLE COMPONENTS.
Claim 2
Dependent Claim
70 words
A RESINOUS COMPOSITION COMPRISING A MIXTURE OF (A) A POLYESTER OF A DIHYDRIC ALCOHOL AND AN ALPHA-BETA ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID, (B) A MONOMER CONTAINING A CH2=C< GROUP, THE MONOMER BEING PRESENT IN AN AMOUNT OF ABOUT 5 PERCENT TO 50 PERCENT BY WEIGHT BASED UPON THE POLYESTER-MONOMER MIXTURE AND (C) ABOUT 0.5 PERCENT TO 12 PERCENT BY WEIGHT OF WATER BASED UPON THE TOTAL WEIGHT OF SAID INTERPOLYMERIZABLE COMPONENTS.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |