Patent US2515686A successfully refreshed from Google Patents.
US2515686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of haloacrylic compounds
Assignee: GAF Chemicals Corp
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Filing: 1945-06-23
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Granted: 1950-07-18
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Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 Carl E Barnes
- 👤 Jr William O Ney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:57
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22; C08F20/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A COMPOSITION OF MATTER ADAPTED TO BE MASS POLYMERIZED TO A TRANSPARENT, COLORLESS, COLOR-STABLE POLYMER, CONSISTING ESSENTIALLY OF A MONOMERIC A-HALOGEN SUBSTITUTED ACRYLIC ACID DERIVATIVE, HAVING DISSOLVED THEREIN FROM 0.1 TO 5% OF AN INORGANIC ACID ESTER OF A SATURATED ALCOHOL OF UP TO 3 CARBON ATOMS, OF THE CLASS CONSISTING OF SULFITES, SULFATES, BORATES, HYPOCHLORITES, CHLOROHYDRINS AND BROMOHYDRINS, THE AMOUNT OF SAID INORGANIC ACID ESTER BEING INSUFFICIENT TO MATERIALLY AFFECT THE PHYSICAL CHARACTERISTICS OF THE POLYMER BUT SUFFICIENT TO PREVENT THE FORMATION OF COLOR IN SAID POLYMER.
Claim 2
Dependent Claim
88 words
A COMPOSITION OF MATTER ADAPTED TO BE MASS POLYMERIZED TO A TRANSPARENT, COLORLESS, COLOR-STABLE POLYMER, CONSISTING ESSENTIALLY OF A MONOMERIC A-HALOGEN SUBSTITUTED ACRYLIC ACID DERIVATIVE, HAVING DISSOLVED THEREIN FROM 0.1 TO 5% OF AN INORGANIC ACID ESTER OF A SATURATED ALCOHOL OF UP TO 3 CARBON ATOMS, OF THE CLASS CONSISTING OF SULFITES, SULFATES, BORATES, HYPOCHLORITES, CHLOROHYDRINS AND BROMOHYDRINS, THE AMOUNT OF SAID INORGANIC ACID ESTER BEING INSUFFICIENT TO MATERIALLY AFFECT THE PHYSICAL CHARACTERISTICS OF THE POLYMER BUT SUFFICIENT TO PREVENT THE FORMATION OF COLOR IN SAID POLYMER.
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) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |