US3475219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright treatment for workpieces having toxic carryover
Assignee: LANCY LAB
•
Filing: 1966-07-12
•
Granted: 1969-10-28
•
Expires: 1986-07-12
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Lancy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:00
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/66; C23; C23G; C23G1/00; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/06; C25D11/08; C25D21/00; C25D21/08; C02F2101/00; C02F2101/10; C02F2101/16; C02F2101/18; H; H02; H02J; H02J2101/00; H02J2101/20; H02J2101/28; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/903; Y10S210/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2257133A
Cited
US2618606A
Cited
US2725314A
Cited
US2877188A
Cited
US2941953A
Cited
US2830942A
Cited
US3295917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |