Patent US2724705A successfully refreshed from Google Patents.
US2724705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified polyester resin
Assignee: Hercules Powder Co
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Filing: 1955-06-24
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Granted: 1955-11-22
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Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert S Glover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:11
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A POLYMERIZABLE COMPOSITION COMPRISING ABOUT 3070% POLYMERIZABLE UNSATURATED POLYESTER OF A POLYHYDRIC ALCOHOL AND A POLYCARBOXYLIC ACID, ABOUT 70-30% POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMERIC COMPOUND CAPABLE OF COPOLYMERIZING WITH SAID POLYESTER AND ABOUT 1-40% SUBSTANTIALLY PETROLEUM HYDROCARBON-INSOLUBLE PINE WOOD RESIN BY WEIGHT.
Claim 2
Dependent Claim
41 words
A POLYMERIZABLE COMPOSITION COMPRISING ABOUT 3070% POLYMERIZABLE UNSATURATED POLYESTER OF A POLYHYDRIC ALCOHOL AND A POLYCARBOXYLIC ACID, ABOUT 70-30% POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMERIC COMPOUND CAPABLE OF COPOLYMERIZING WITH SAID POLYESTER AND ABOUT 1-40% SUBSTANTIALLY PETROLEUM HYDROCARBON-INSOLUBLE PINE WOOD RESIN BY WEIGHT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |