US3047608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphites
Assignee: Weston Chemical Corp
•
Filing: 1960-09-15
•
Granted: 1962-07-31
•
Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Friedman Lester
- 👤 Gould Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:10
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/04; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65742; C07F9/65746; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/292; C10; C10M; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS COMPRISING TRANSESTERIFYING AN AROMATIC PHOSPHITE HAVING THE FORMULA
Claim 2
Dependent Claim
10 words
A PROCESS COMPRISING TRANSESTERIFYING AN AROMATIC PHOSPHITE HAVING THE FORMULA
References Cited (Backward Citations)
CA553997A
Cited
US2241244A
Cited
US2280450A
Cited
US2587616A
Cited
GB805931A
Cited
US2728790A
Cited
US2847443A
Cited
US3000850A
Cited
US2961454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |