US3052647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat hardenable composition comprising an alkyd resin, an epoxy polyester resin, anda dipentene:maleic acid anhydride adduct and process of preparing same
Assignee: Henkel AG and Co KGaA
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Filing: 1958-09-05
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Granted: 1962-09-04
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Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 Pietsch Helmut
- 👤 Kohler Rudolf
- 👤 Stein Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A HEAT HARDENABLE RESINOUS COMPOSITION COMPRISING (1) AN ALKYD RESIN WHEREIN THE ALCOHOL COMPONENT IS ENTIRELY DERIVED FROM ALCOHOLS HAVING AT LEAST THREE HYDROXY GROUPS, (2) AN EPOXY POLYESTER RESIN HAVING ESSENTIALLY THE STRUCTURAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |