US2494862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methylol phosphites
Assignee: Rohm and Haas Co
•
Filing: 1947-08-07
•
Granted: 1950-01-17
•
Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 W E Craig
- 👤 William F Hester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; A; A01; A01N; A01N57/00; A01N57/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
COMPOUNDS OF THE FORMULA (RO) 2POCH2OH WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF ALIPHATIC HYDROCARBON GROUPS OF NOT OVER TWELVE CARBON ATOMS, CHLORAOLKYL AND CHLOROALKOXYALKYL GROUPS OF TWO TO SIX CARBON ATOMS, AND THE CHLOROETHOXYETHOXYETHYL GROUP.
Claim 2
Dependent Claim
39 words
COMPOUNDS OF THE FORMULA (RO) 2POCH2OH WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF ALIPHATIC HYDROCARBON GROUPS OF NOT OVER TWELVE CARBON ATOMS, CHLORAOLKYL AND CHLOROALKOXYALKYL GROUPS OF TWO TO SIX CARBON ATOMS, AND THE CHLOROETHOXYETHOXYETHYL GROUP.
References Cited (Backward Citations)
US1936985A
Cited
US2169185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |