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US3221035A
Expired / Lapsed
US
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Reaction products of pentaerythritol boric acid and metal salt
Assignee: Hercules Powder Co
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Filing: 1961-03-31
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Granted: 1965-11-30
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SUBSTANTIALLY WATER-INSOLUBLE, AMORPHOUS, SOLID PRODUCT OF THE REACTION, IN THE PRESENCE OF THE WATER, OF PNETAERYTHRITOL, BORIC ACID AND DIVALENT METAL SALT OF A WEAK ACID, IN WHICH PRODUCT THE CHEMCIALLY COMBINED MOLAR PROPORTION OF PENTAERYTHRIOTOL, BORON AND DIVALENT METAL ARE APPROXIMATELY 1:1:0.5, SAID WEAK ACID BEING SELECTED FROM THE GROUP CONSISTING OF ACETIC, PROPIONIC, BUTYRIC, VALERIC, TREMETHYL ACETIC, CAPROIC, HAPTYLIC, CAPRYLIC, PELARGONIC, B-CHLOROPROPIONIC, AND BENZOIC ACIDS.
Claim 2
Dependent Claim
68 words
A SUBSTANTIALLY WATER-INSOLUBLE, AMORPHOUS, SOLID PRODUCT OF THE REACTION, IN THE PRESENCE OF THE WATER, OF PNETAERYTHRITOL, BORIC ACID AND DIVALENT METAL SALT OF A WEAK ACID, IN WHICH PRODUCT THE CHEMCIALLY COMBINED MOLAR PROPORTION OF PENTAERYTHRIOTOL, BORON AND DIVALENT METAL ARE APPROXIMATELY 1:1:0.5, SAID WEAK ACID BEING SELECTED FROM THE GROUP CONSISTING OF ACETIC, PROPIONIC, BUTYRIC, VALERIC, TREMETHYL ACETIC, CAPROIC, HAPTYLIC, CAPRYLIC, PELARGONIC, B-CHLOROPROPIONIC, AND BENZOIC ACIDS.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |