Patent US3458544A successfully refreshed from Google Patents.
US3458544A
Expired / Lapsed
US
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Preparation of silver salts of organic carboxylic acids
Assignee: 3M Co
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Filing: 1965-09-17
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Granted: 1969-07-29
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas Toplica Bryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:26
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/4989; C; C07; C07C; C07C51/00; C07C51/41; C07C51/412; G03C1/49809
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2268567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |