Patent US3521203A successfully refreshed from Google Patents.
US3521203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic mounting for pill-type diodes
Assignee: AT&T Inc
•
Filing: 1967-11-14
•
Granted: 1970-07-21
•
Expires: 1987-11-14
Abstract
No abstract record available.
Inventors
- 👤 William M Sharpless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:47
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/005; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53196
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2472938A
Cited
US3038139A
Cited
US3178796A
Cited
US2991347A
Cited
US3142783A
Cited
US3223903A
Cited
US3254279A
Cited
US3316494A
Cited
US3360851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |