Patent US4575686A successfully refreshed from Google Patents.
US3514830A
Expired / Lapsed
US
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Method for manufacturing a coating layer to protect the working surfaces of machinery
Assignee: Individual
•
Filing: 1967-10-27
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Granted: 1970-06-02
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Expires: 1987-10-27
Abstract
No abstract record available.
Inventors
- 👤 Shinjiro Takakita
- 👤 Ko Takakita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:00
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/08; A; A01; A01B; A01B15/00; A01B15/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49448; Y10T29/496; Y10T29/49801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1742515A
Cited
US1842186A
Cited
US1978620A
Cited
US3053713A
Cited
US3250833A
Cited
US3378613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |