US3530551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing ceramic magnetic articles
Assignee: US Philips Corp
•
Filing: 1967-08-23
•
Granted: 1970-09-29
•
Expires: 1987-08-23
Abstract
No abstract record available.
Inventors
- 👤 Eduard Johannes Haes
- 👤 Adrianus Theodorus Van De Maat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:34
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/02; B28B13/0215; B28B13/0275; B28B1/00; B28B1/26; B28B1/265; B28B3/00; B28B3/02; B28B7/00; B28B7/40; B28B7/46; C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; H; H01; H01F; H01F13/00; H01F13/003; H02; H02K; H02K15/00; H02K15/02; H02K15/03; Y; Y10; Y10S; Y10S425/00; Y10S425/033
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2770025A
Cited
US3274303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |