US2864810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cogeneric glycol ethers of partial esters of pentaerythritol and rosin
Assignee: Hercules Powder Co
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Filing: 1955-03-30
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Granted: 1958-12-16
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Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jack B Batdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:03
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/03; C09; C09F; C09F1/00; C09F1/04; C10; C10G; C10G33/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A COMPOSITION COMPRISING A COGENERIC MIXTURE OF GLYCOL ETHERS DERIVED FROM THE REACTION OF A PARTIAL ESTER OF A PENTAERYTHRITOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL AND POLYPENTAERYTHRITOLS AND A ROSIN SELECTED FROM THE GROUP CONSISTING OF ROSIN, HYDROGENATED ROSIN, DEHYDROGENATED ROSIN, DISPROPORTIONATED ROSIN, AND POLYMERIZED ROSIN WITH AN ALKYLENE OXIDE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE AND COMBINATIONS THEREOF WITH PROPYLENE OXIDE, THE AMOUNT OF ALKYLENE OXIDE BEING FROM ABOUT 10 TO 100 MOLES FOR EACH MOLE OF SAID ESTER.
Claim 2
Dependent Claim
84 words
A COMPOSITION COMPRISING A COGENERIC MIXTURE OF GLYCOL ETHERS DERIVED FROM THE REACTION OF A PARTIAL ESTER OF A PENTAERYTHRITOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL AND POLYPENTAERYTHRITOLS AND A ROSIN SELECTED FROM THE GROUP CONSISTING OF ROSIN, HYDROGENATED ROSIN, DEHYDROGENATED ROSIN, DISPROPORTIONATED ROSIN, AND POLYMERIZED ROSIN WITH AN ALKYLENE OXIDE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE AND COMBINATIONS THEREOF WITH PROPYLENE OXIDE, THE AMOUNT OF ALKYLENE OXIDE BEING FROM ABOUT 10 TO 100 MOLES FOR EACH MOLE OF SAID ESTER.
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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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |