Patent US3047608A successfully refreshed from Google Patents.
US3047608A
Expired / Lapsed
US
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Phosphites
Assignee: Weston Chemical Corp
•
Filing: 1960-09-15
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Granted: 1962-07-31
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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 10:02
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
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US2241244A
Cited
US2280450A
Cited
US2587616A
Cited
GB805931A
Cited
US2728790A
Cited
US2847443A
Cited
US3000850A
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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 |