Patent US3032571A successfully refreshed from Google Patents.
US3032571A
Expired / Lapsed
US
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Stabilized stannous carboxylates
Assignee: Primerica Inc
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Filing: 1959-11-30
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Granted: 1962-05-01
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Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 John R Leebrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:43
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/41; C07F; C07F7/00; C07F7/003; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/22; C08G18/24; C08G18/244
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
THE PROCESS OF STABILIZING STANNOUS SALTS OF AROMATIC AND ALIPHATIC CARBOXYLIC ACIDS COMPRISING INCORPORATING IN SAID SALTS AN AMOUNT OF 4-TERT-BUTYL CATECHOL SUFFICIENT TO INHIBIT DEGRADATION AND NOT EXCEEDING 2%.
Claim 2
Dependent Claim
30 words
THE PROCESS OF STABILIZING STANNOUS SALTS OF AROMATIC AND ALIPHATIC CARBOXYLIC ACIDS COMPRISING INCORPORATING IN SAID SALTS AN AMOUNT OF 4-TERT-BUTYL CATECHOL SUFFICIENT TO INHIBIT DEGRADATION AND NOT EXCEEDING 2%.
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) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |