Patent US2554441A successfully refreshed from Google Patents.
US2554441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halomethyl ethers of nuclear alkylated monoaryl glycol ethers
Assignee: GAF Chemicals Corp
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Filing: 1948-12-16
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Granted: 1951-05-22
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Expires: 1968-12-16
Abstract
No abstract record available.
Inventors
- 👤 James M Cross
- 👤 Raymond L Mayhew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:11
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A HALOMETHYL ETHER OF A NUCLEAR ALKYL SUBSTITUTED MONOARYL GLYCOL ETHER HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
15 words
A HALOMETHYL ETHER OF A NUCLEAR ALKYL SUBSTITUTED MONOARYL GLYCOL ETHER HAVING THE FOLLOWING FORMULA:
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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |