US3133944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal salts of gamma, gamma-bis-(para-hydroxy-phenyl) valeric acid
Assignee: PPG Industries Inc
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Filing: 1956-05-18
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Granted: 1964-05-19
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Expires: 1976-05-18
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:03
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/42; C07C59/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
AS A COMPOUND A SALT OF GAMMA,GAMMA-P,P''-DI(HYDROXYPHENYL)VALERIC ACID AND A HEAVY METAL OF A CLASS CONSISTING OF MERCURY, COPPER, MANGANESE, ZINC, CHLROMIUM AND COBALT.
Claim 2
Dependent Claim
9 words
AS A COMPOUND, A MERCURY SALT OF GAMMA,GAMMAP,P''-DI(HYDROXYPHENYL)VALERIC ACID.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |