US3471308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal flake
Assignee: Tainton Co
•
Filing: 1966-04-22
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Granted: 1969-10-07
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Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 Erith T Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:13
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; B22F1/00; B22F1/06; B22F1/068; C; C09; C09C; C09C1/00; C09C1/62; C09C1/622; C09C1/625; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; B22F2998/00; C01; C01P; C01P2004/00; C01P2004/20; C01P2004/60; C01P2004/61; C01P2004/62
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |