US3413231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal cleaning and antitarnish compositions
Assignee: Wyeth Holdings LLC
•
Filing: 1965-07-23
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Granted: 1968-11-26
•
Expires: 1985-07-23
Abstract
No abstract record available.
Inventors
- 👤 Kolodny Edwin Ralph
- 👤 Grayson Martin
- 👤 Myers Robert Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:53
CPC Classifications
C; C23; C23G; C23G1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923
Claims Analysis
Total Claims: 0
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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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |